build(deps): bump astral-sh/setup-uv from 5 to 6

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 5 to 6.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](https://github.com/astral-sh/setup-uv/compare/v5...v6)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/codespell.yml

@@ -13,10 +13,10 @@ permissions:
 jobs:
   codespell:
     name: Check for spelling errors
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Codespell
         uses: codespell-project/actions-codespell@v2

.github/workflows/docs.yml

@@ -7,14 +7,14 @@ on:
 
 jobs:
   validate:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
-      
+
       - name: Install build dependencies
         run: pip install -r docs/requirements.txt
       - name: Rendering HTML documentation

.github/workflows/main.yml

@@ -5,39 +5,71 @@ on:
     branches:
       - master
   pull_request:
+  schedule:
+    - cron: '0 16 * * 5'  # Every Friday 4pm
   workflow_dispatch:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.8", "pypy-3.9", "pypy-3.10"]
+        python-version:
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+          - "pypy-3.9"
+          - "pypy-3.10"
+        urllib3-requirement:
+          - "urllib3>=2"
+          - "urllib3<2"
+
+        exclude:
+          - python-version: "3.9"
+            urllib3-requirement: "urllib3>=2"
+          - python-version: "pypy-3.9"
+            urllib3-requirement: "urllib3>=2"
+          - python-version: "pypy-3.10"
+            urllib3-requirement: "urllib3>=2"
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          cache: pip
+          allow-prereleases: true
 
       - name: Install project dependencies
         run: |
-          pip3 install --upgrade pip
-          pip3 install codecov tox tox-gh-actions
+          uv pip install --system --upgrade pip setuptools
+          uv pip install --system codecov '.[tests]' '${{ matrix.urllib3-requirement }}'
+          uv pip check
 
-      - name: Run online tests with tox
-        run: tox -- -m online
+      - name: Allow creation of user namespaces (e.g. to the unshare command)
+        run: |
+          # .. so that we don't get error:
+          # unshare: write failed /proc/self/uid_map: Operation not permitted
+          # Idea from https://github.com/YoYoGames/GameMaker-Bugs/issues/6015#issuecomment-2135552784 .
+          sudo sysctl kernel.apparmor_restrict_unprivileged_userns=0
 
-      - name: Run offline tests with tox with no access to the Internet
+      - name: Run online tests
+        run: ./runtests.sh --cov=./vcr --cov-branch --cov-report=xml --cov-append -m online
+
+      - name: Run offline tests with no access to the Internet
         run: |
           # We're using unshare to take Internet access
-          # away from tox so that we'll notice whenever some new test
+          # away so that we'll notice whenever some new test
           # is missing @pytest.mark.online decoration in the future
           unshare --map-root-user --net -- \
-              sh -c 'ip link set lo up; tox -- -m "not online"'
+              sh -c 'ip link set lo up; ./runtests.sh --cov=./vcr --cov-branch --cov-report=xml --cov-append -m "not online"'
 
       - name: Run coverage
         run: codecov

.github/workflows/pre-commit-detect-outdated.yml

@@ -0,0 +1,62 @@
+# Copyright (c) 2023 Sebastian Pipping <sebastian@pipping.org>
+# Licensed under the MIT license
+
+name: Detect outdated pre-commit hooks
+
+on:
+  schedule:
+    - cron: '0 16 * * 5'  # Every Friday 4pm
+
+# NOTE: This will drop all permissions from GITHUB_TOKEN except metadata read,
+#       and then (re)add the ones listed below:
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  pre_commit_detect_outdated:
+    name: Detect outdated pre-commit hooks
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+
+      - name: Install pre-commit
+        run: |-
+          pip install \
+            --disable-pip-version-check \
+            --no-warn-script-location \
+            --user \
+            pre-commit
+          echo "PATH=${HOME}/.local/bin:${PATH}" >> "${GITHUB_ENV}"
+
+      - name: Check for outdated hooks
+        run: |-
+          pre-commit autoupdate
+          git diff -- .pre-commit-config.yaml
+
+      - name: Create pull request from changes (if any)
+        id: create-pull-request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          author: 'pre-commit <pre-commit@tools.invalid>'
+          base: master
+          body: |-
+            For your consideration.
+
+            :warning: Please **CLOSE AND RE-OPEN** this pull request so that [further workflow runs get triggered](https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#triggering-further-workflow-runs) for this pull request.
+          branch: precommit-autoupdate
+          commit-message: "pre-commit: Autoupdate"
+          delete-branch: true
+          draft: true
+          labels: enhancement
+          title: "pre-commit: Autoupdate"
+
+      - name: Log pull request URL
+        if: "${{ steps.create-pull-request.outputs.pull-request-url }}"
+        run: |
+          echo "Pull request URL is: ${{ steps.create-pull-request.outputs.pull-request-url }}"

.github/workflows/pre-commit.yml

@@ -0,0 +1,20 @@
+# Copyright (c) 2023 Sebastian Pipping <sebastian@pipping.org>
+# Licensed under the MIT license
+
+name: Run pre-commit
+
+on:
+- pull_request
+- push
+- workflow_dispatch
+
+jobs:
+  pre-commit:
+    name: Run pre-commit
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v5
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.12
+    - uses: pre-commit/action@v3.0.1

.pre-commit-config.yaml

@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Sebastian Pipping <sebastian@pipping.org>
+# Licensed under the MIT license
+
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.12.7
+    hooks:
+      - id: ruff
+        args: ["--output-format=full"]
+      - id: ruff-format
+
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: check-merge-conflict
+      - id: end-of-file-fixer
+      - id: trailing-whitespace

.readthedocs.yaml

@@ -7,7 +7,7 @@ version: 2
 
 # Set the version of Python and other tools you might need
 build:
-  os: ubuntu-22.04
+  os: ubuntu-24.04
   tools:
     python: "3.12"
 

MANIFEST.in

@@ -1,6 +1,5 @@
 include README.rst
 include LICENSE.txt
-include tox.ini
 recursive-include tests *
 recursive-exclude * __pycache__
 recursive-exclude * *.py[co]

README.rst

@@ -4,7 +4,7 @@ VCR.py 📼
 ###########
 
 
-|PyPI| |Python versions| |Build Status| |CodeCov| |Gitter| |CodeStyleBlack|
+|PyPI| |Python versions| |Build Status| |CodeCov| |Gitter|
 
 ----
 
@@ -70,6 +70,3 @@ more details
 .. |CodeCov| image:: https://codecov.io/gh/kevin1024/vcrpy/branch/master/graph/badge.svg
    :target: https://codecov.io/gh/kevin1024/vcrpy
    :alt: Code Coverage Status
-.. |CodeStyleBlack| image:: https://img.shields.io/badge/code%20style-black-000000.svg 
-   :target: https://github.com/psf/black
-   :alt: Code Style: black

docs/_static/vcr.svg

@@ -24,4 +24,4 @@
       <stop offset="1" stop-color="#27DDA6"/>
     </linearGradient>
   </defs>
-</svg>
+</svg>

docs/advanced.rst

@@ -16,7 +16,7 @@ a nice addition. Here's an example:
     with vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml') as cass:
         response = urllib2.urlopen('http://www.zombo.com/').read()
         # cass should have 1 request inside it
-        assert len(cass) == 1 
+        assert len(cass) == 1
         # the request uri should have been http://www.zombo.com/
         assert cass.requests[0].uri == 'http://www.zombo.com/'
 
@@ -208,7 +208,7 @@ So these two calls are the same:
 
     # original (still works)
     vcr = VCR(filter_headers=['authorization'])
-    
+
     # new
     vcr = VCR(filter_headers=[('authorization', None)])
 
@@ -218,7 +218,7 @@ Here are two examples of the new functionality:
 
     # replace with a static value (most common)
     vcr = VCR(filter_headers=[('authorization', 'XXXXXX')])
-    
+
     # replace with a callable, for example when testing
     # lots of different kinds of authorization.
     def replace_auth(key, value, request):
@@ -286,7 +286,7 @@ sensitive data from the response body:
         before_record_response=scrub_string(settings.USERNAME, 'username'),
     )
     with my_vcr.use_cassette('test.yml'):
-         # your http code here    
+         # your http code here
 
 
 Decode compressed response
@@ -427,3 +427,16 @@ If you want to save the cassette only when the test succeeds, set the Cassette
 
     # Since there was an exception, the cassette file hasn't been created.
     assert not os.path.exists('fixtures/vcr_cassettes/synopsis.yaml')
+
+Drop unused requests
+--------------------
+
+Even if any HTTP request is changed or removed from tests, previously recorded
+interactions remain in the cassette file.  If set the ``drop_unused_requests``
+option to ``True``, VCR will not save old HTTP interactions if they are not used.
+
+.. code:: python
+
+    my_vcr = VCR(drop_unused_requests=True)
+    with my_vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml'):
+        ...  # your HTTP interactions here

docs/changelog.rst

@@ -7,6 +7,26 @@ For a full list of triaged issues, bugs and PRs and what release they are target
 
 All help in providing PRs to close out bug issues is appreciated. Even if that is providing a repo that fully replicates issues. We have very generous contributors that have added these to bug issues which meant another contributor picked up the bug and closed it out.
 
+-  7.0.0
+    - Drop support for python 3.8 (major version bump) - thanks @jairhenrique
+    - Various linting and test fixes - thanks @jairhenrique
+    - Bugfix for urllib2>=2.3.0 - missing version_string (#888)
+    - Bugfix for asyncio.run - thanks @alekeik1
+-  6.0.2
+    - Ensure body is consumed only once (#846) - thanks @sathieu
+    - Permit urllib3 2.x for non-PyPy Python >=3.10
+    - Fix typos in test commands - thanks @chuckwondo
+    - Several test and workflow improvements - thanks @hartwork and @graingert
+-  6.0.1
+    - Bugfix with to Tornado cassette generator (thanks @graingert)
+-  6.0.0
+    - BREAKING: Fix issue with httpx support (thanks @parkerhancock) in #784. NOTE: You may have to recreate some of your cassettes produced in previous releases due to the binary format being saved incorrectly in previous releases
+    - BREAKING: Drop support for `boto` (vcrpy still supports boto3, but is dropping the deprecated `boto` support in this release. (thanks @jairhenrique)
+    - Fix compatibility issue with Python 3.12 (thanks @hartwork)
+    - Drop simplejson (fixes some compatibility issues) (thanks @jairhenrique)
+    - Run CI on Python 3.12 and PyPy 3.9-3.10 (thanks @mgorny)
+    - Various linting and docs improvements (thanks @jairhenrique)
+    - Tornado fixes (thanks @graingert)
 -  5.1.0
     - Use ruff for linting (instead of current flake8/isort/pyflakes) - thanks @jairhenrique
     - Enable rule B (flake8-bugbear) on ruff - thanks @jairhenrique
@@ -287,4 +307,3 @@ All help in providing PRs to close out bug issues is appreciated. Even if that i
     - Add support for requests / urllib3
 -  0.0.1
     - Initial Release
-

docs/conf.py

@@ -316,5 +316,5 @@ texinfo_documents = [
 
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {"https://docs.python.org/": None}
+intersphinx_mapping = {"python": ("https://docs.python.org/3", None)}
 html_theme = "alabaster"

docs/contributing.rst

@@ -24,7 +24,7 @@ So whilst reporting issues are valuable, please consider:
  - contributing an issue with a toy repo that replicates the issue.
  - contributing PRs is a more valuable donation of your time and effort.
 
-Thanks again for your interest and support in VCRpy. 
+Thanks again for your interest and support in VCRpy.
 
 We really appreciate it.
 
@@ -57,7 +57,7 @@ Simply adding these three labels for incoming issues means a lot for maintaining
  - Which library does it affect? ``core``, ``aiohttp``, ``requests``, ``urllib3``, ``tornado4``, ``httplib2``
  - If it is a bug, is it ``Verified Can Replicate`` or ``Requires Help Replicating``
  - Thanking people for raising issues. Feedback is always appreciated.
- - Politely asking if they are able to link to an example repo that replicates the issue if they haven't already. Being able to *clone and go* helps the next person and we like that. 😃 
+ - Politely asking if they are able to link to an example repo that replicates the issue if they haven't already. Being able to *clone and go* helps the next person and we like that. 😃
 
 **Maintainer:**
 
@@ -68,7 +68,7 @@ This involves creating PRs to address bugs and enhancement requests. It also mea
 The PR reviewer is a second set of eyes to see if:
  - Are there tests covering the code paths added/modified?
  - Do the tests and modifications make sense seem appropriate?
- - Add specific feedback, even on approvals, why it is accepted. eg "I like how you use a context manager there. 😄 " 
+ - Add specific feedback, even on approvals, why it is accepted. eg "I like how you use a context manager there. 😄 "
  - Also make sure they add a line to `docs/changelog.rst` to claim credit for their contribution.
 
 **Release Manager:**
@@ -83,39 +83,21 @@ The PR reviewer is a second set of eyes to see if:
 Running VCR's test suite
 ------------------------
 
-The tests are all run automatically on `Travis
-CI <https://travis-ci.org/kevin1024/vcrpy>`__, but you can also run them
-yourself using `pytest <http://pytest.org/>`__ and
-`Tox <http://tox.testrun.org/>`__. 
+The tests are all run automatically on `Github Actions CI <https://github.com/kevin1024/vcrpy/actions>`__,
+but you can also run them yourself using `pytest <http://pytest.org/>`__.
 
-Tox will automatically run them in all environments VCR.py supports if they are available on your `PATH`. Alternatively you can use `tox-pyenv <https://pypi.org/project/tox-pyenv/>`_ with 
-`pyenv <https://github.com/pyenv/pyenv>`_. 
-We recommend you read the documentation for each and see the section further below.
-
-The test suite is pretty big and slow, but you can tell tox to only run specific tests like this::
-
-    tox -e {pyNN}-{HTTP_LIBRARY} -- <pytest flags passed through>
-
-    tox -e py38-requests -- -v -k "'test_status_code or test_gzip'"
-    tox -e py38-requests -- -v --last-failed
-
-This will run only tests that look like ``test_status_code`` or
-``test_gzip`` in the test suite, and only in the python 3.8 environment
-that has ``requests`` installed.
-
-Also, in order for the boto3 tests to run, you will need an AWS key.
+In order for the boto3 tests to run, you will need an AWS key.
 Refer to the `boto3
 documentation <https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/index.html>`__
 for how to set this up. I have marked the boto3 tests as optional in
 Travis so you don't have to worry about them failing if you submit a
 pull request.
 
-Using PyEnv with VCR's test suite
+Using Pyenv with VCR's test suite
 ---------------------------------
 
-PyEnv is a tool for managing multiple installation of python on your system.
-See the full documentation at their `github <https://github.com/pyenv/pyenv>`_ 
-but we are also going to use `tox-pyenv <https://pypi.org/project/tox-pyenv/>`_ 
+Pyenv is a tool for managing multiple installation of python on your system.
+See the full documentation at their `github <https://github.com/pyenv/pyenv>`_
 in this example::
 
     git clone https://github.com/pyenv/pyenv ~/.pyenv
@@ -126,27 +108,21 @@ in this example::
     # Setup shim paths
     eval "$(pyenv init -)"
 
-    # Setup your local system tox tooling
-    pip3 install tox tox-pyenv
-
     # Install supported versions (at time of writing), this does not activate them
-    pyenv install 3.8.0 pypy3.8
+    pyenv install 3.12.0 pypy3.10
 
     # This activates them
-    pyenv local 3.8.0 pypy3.8
+    pyenv local 3.12.0 pypy3.10
 
     # Run the whole test suite
-    tox
-
-    # Run the whole test suite or just part of it
-    tox -e lint
-    tox -e py38-requests
+    pip install .[tests]
+    ./runtests.sh
 
 
 Troubleshooting on MacOSX
 -------------------------
 
-If you have this kind of error when running tox :
+If you have this kind of error when running tests :
 
 .. code:: python
 

docs/installation.rst

@@ -9,7 +9,7 @@ with pip::
 Compatibility
 -------------
 
-VCR.py supports Python 3.8+, and `pypy <http://pypy.org>`__.
+VCR.py supports Python 3.9+, and `pypy <http://pypy.org>`__.
 
 The following HTTP libraries are supported:
 

docs/requirements.txt

@@ -1,2 +1,2 @@
-sphinx<8
-sphinx_rtd_theme==1.3.0
+sphinx<9
+sphinx_rtd_theme==3.0.2

pyproject.toml

@@ -1,18 +1,17 @@
-[tool.black]
-line-length=110
-
 [tool.codespell]
 skip = '.git,*.pdf,*.svg,.tox'
 ignore-regex = "\\\\[fnrstv]"
-#
-# ignore-words-list = ''
 
 [tool.pytest.ini_options]
-markers = [
-    "online",
-]
+addopts = ["--strict-config", "--strict-markers"]
+asyncio_default_fixture_loop_scope = "function"
+markers = ["online"]
 
 [tool.ruff]
+line-length = 110
+target-version = "py39"
+
+[tool.ruff.lint]
 select = [
     "B",   # flake8-bugbear
     "C4",  # flake8-comprehensions
@@ -26,8 +25,6 @@ select = [
     "UP",  # pyupgrade
     "W",   # pycodestyle warning
 ]
-line-length = 110
-target-version = "py38"
 
-[tool.ruff.isort]
-known-first-party = [ "vcr" ]
+[tool.ruff.lint.isort]
+known-first-party = ["vcr"]

runtests.sh

@@ -1,7 +1,5 @@
 #!/bin/bash
 
-# https://blog.ionelmc.ro/2015/04/14/tox-tricks-and-patterns/#when-it-inevitably-leads-to-shell-scripts
-# If you are getting an INVOCATION ERROR for this script then there is 
-# a good chance you are running on Windows.
-# You can and should use WSL for running tox on Windows when it calls bash scripts.
+# If you are getting an INVOCATION ERROR for this script then there is a good chance you are running on Windows.
+# You can and should use WSL for running tests on Windows when it calls bash scripts.
 REQUESTS_CA_BUNDLE=`python3 -m pytest_httpbin.certs` exec pytest "$@"

setup.py

@@ -3,10 +3,8 @@
 import codecs
 import os
 import re
-import sys
 
 from setuptools import find_packages, setup
-from setuptools.command.test import test as TestCommand
 
 long_description = open("README.rst").read()
 here = os.path.abspath(os.path.dirname(__file__))
@@ -28,20 +26,6 @@ def find_version(*file_paths):
     raise RuntimeError("Unable to find version string.")
 
 
-class PyTest(TestCommand):
-    def finalize_options(self):
-        TestCommand.finalize_options(self)
-        self.test_args = []
-        self.test_suite = True
-
-    def run_tests(self):
-        # import here, cause outside the eggs aren't loaded
-        import pytest
-
-        errno = pytest.main(self.test_args)
-        sys.exit(errno)
-
-
 install_requires = [
     "PyYAML",
     "wrapt",
@@ -55,26 +39,34 @@ install_requires = [
     "urllib3 <2; python_version <'3.10'",
     # https://github.com/kevin1024/vcrpy/pull/775#issuecomment-1847849962
     "urllib3 <2; platform_python_implementation =='PyPy'",
+    # Workaround for Poetry with CPython >= 3.10, problem description at:
+    # https://github.com/kevin1024/vcrpy/pull/826
+    "urllib3; platform_python_implementation !='PyPy' and python_version >='3.10'",
 ]
 
-tests_require = [
-    "aiohttp",
-    "boto3",
-    "httplib2",
-    "httpx",
-    "pytest",
-    "pytest-aiohttp",
-    "pytest-httpbin",
-    "requests>=2.16.2",
-    "tornado",
-    # Needed to un-break httpbin 0.7.0. For httpbin >=0.7.1 and after,
-    # this pin and the dependency itself can be removed, provided
-    # that the related bug in httpbin has been fixed:
-    # https://github.com/kevin1024/vcrpy/issues/645#issuecomment-1562489489
-    # https://github.com/postmanlabs/httpbin/issues/673
-    # https://github.com/postmanlabs/httpbin/pull/674
-    "Werkzeug==2.0.3",
-]
+extras_require = {
+    "tests": [
+        "aiohttp",
+        "boto3",
+        "httplib2",
+        "httpx",
+        "pytest-aiohttp",
+        "pytest-asyncio",
+        "pytest-cov",
+        "pytest-httpbin",
+        "pytest",
+        "requests>=2.22.0",
+        "tornado",
+        "urllib3",
+        # Needed to un-break httpbin 0.7.0. For httpbin >=0.7.1 and after,
+        # this pin and the dependency itself can be removed, provided
+        # that the related bug in httpbin has been fixed:
+        # https://github.com/kevin1024/vcrpy/issues/645#issuecomment-1562489489
+        # https://github.com/postmanlabs/httpbin/issues/673
+        # https://github.com/postmanlabs/httpbin/pull/674
+        "Werkzeug==2.0.3",
+    ],
+}
 
 setup(
     name="vcrpy",
@@ -86,21 +78,22 @@ setup(
     author_email="me@kevinmccarthy.org",
     url="https://github.com/kevin1024/vcrpy",
     packages=find_packages(exclude=["tests*"]),
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     install_requires=install_requires,
     license="MIT",
-    tests_require=tests_require,
+    extras_require=extras_require,
+    tests_require=extras_require["tests"],
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Environment :: Console",
         "Intended Audience :: Developers",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",

tests/fixtures/migration/new_cassette.json

@@ -15,9 +15,9 @@
             },
             "response": {
                 "status": {
-                    "message": "OK", 
+                    "message": "OK",
                     "code": 200
-                }, 
+                },
                 "headers": {
                     "access-control-allow-origin": ["*"],
                     "content-type": ["application/json"],
@@ -25,7 +25,7 @@
                     "server": ["gunicorn/0.17.4"],
                     "content-length": ["32"],
                     "connection": ["keep-alive"]
-                }, 
+                },
                 "body": {
                     "string": "{\n  \"origin\": \"217.122.164.194\"\n}"
                 }

tests/fixtures/migration/new_cassette.yaml

@@ -2,7 +2,7 @@ version: 1
 interactions:
 - request:
     body: null
-    headers: 
+    headers:
       accept: ['*/*']
       accept-encoding: ['gzip, deflate, compress']
       user-agent: ['python-requests/2.2.1 CPython/2.6.1 Darwin/10.8.0']

tests/fixtures/migration/old_cassette.json

@@ -1,31 +1,31 @@
 [
     {
         "request": {
-            "body": null, 
-            "protocol": "http", 
-            "method": "GET", 
+            "body": null,
+            "protocol": "http",
+            "method": "GET",
             "headers": {
-                "accept-encoding": "gzip, deflate, compress", 
-                "accept": "*/*", 
+                "accept-encoding": "gzip, deflate, compress",
+                "accept": "*/*",
                 "user-agent": "python-requests/2.2.1 CPython/2.6.1 Darwin/10.8.0"
-            }, 
-            "host": "httpbin.org", 
-            "path": "/ip", 
+            },
+            "host": "httpbin.org",
+            "path": "/ip",
             "port": 80
-        }, 
+        },
         "response": {
             "status": {
-                "message": "OK", 
+                "message": "OK",
                 "code": 200
-            }, 
+            },
             "headers": [
-                "access-control-allow-origin: *\r\n", 
-                "content-type: application/json\r\n", 
-                "date: Mon, 21 Apr 2014 23:13:40 GMT\r\n", 
-                "server: gunicorn/0.17.4\r\n", 
-                "content-length: 32\r\n", 
+                "access-control-allow-origin: *\r\n",
+                "content-type: application/json\r\n",
+                "date: Mon, 21 Apr 2014 23:13:40 GMT\r\n",
+                "server: gunicorn/0.17.4\r\n",
+                "content-length: 32\r\n",
                 "connection: keep-alive\r\n"
-            ], 
+            ],
             "body": {
                 "string": "{\n  \"origin\": \"217.122.164.194\"\n}"
             }

tests/fixtures/wild/domain_redirect.yaml

@@ -10,7 +10,7 @@ interactions:
     uri: http://seomoz.org/
   response:
     body: {string: ''}
-    headers: 
+    headers:
       Location: ['http://moz.com/']
       Server: ['BigIP']
       Connection: ['Keep-Alive']

tests/integration/aiohttp_utils.py

@@ -5,24 +5,24 @@ import aiohttp
 
 
 async def aiohttp_request(loop, method, url, output="text", encoding="utf-8", content_type=None, **kwargs):
-    session = aiohttp.ClientSession(loop=loop)
-    response_ctx = session.request(method, url, **kwargs)
+    async with aiohttp.ClientSession(loop=loop) as session:
+        response_ctx = session.request(method, url, **kwargs)
 
-    response = await response_ctx.__aenter__()
-    if output == "text":
-        content = await response.text()
-    elif output == "json":
-        content_type = content_type or "application/json"
-        content = await response.json(encoding=encoding, content_type=content_type)
-    elif output == "raw":
-        content = await response.read()
-    elif output == "stream":
-        content = await response.content.read()
+        response = await response_ctx.__aenter__()
+        if output == "text":
+            content = await response.text()
+        elif output == "json":
+            content_type = content_type or "application/json"
+            content = await response.json(encoding=encoding, content_type=content_type)
+        elif output == "raw":
+            content = await response.read()
+        elif output == "stream":
+            content = await response.content.read()
 
-    response_ctx._resp.close()
-    await session.close()
+        response_ctx._resp.close()
+        await session.close()
 
-    return response, content
+        return response, content
 
 
 def aiohttp_app():

tests/integration/cassettes/gzip_httpx_old_format.yaml

@@ -0,0 +1,41 @@
+interactions:
+- request:
+    body: ''
+    headers:
+      accept:
+      - '*/*'
+      accept-encoding:
+      - gzip, deflate, br
+      connection:
+      - keep-alive
+      host:
+      - httpbin.org
+      user-agent:
+      - python-httpx/0.23.0
+    method: GET
+    uri: https://httpbin.org/gzip
+  response:
+    content: "{\n  \"gzipped\": true, \n  \"headers\": {\n    \"Accept\": \"*/*\",
+      \n    \"Accept-Encoding\": \"gzip, deflate, br\", \n    \"Host\": \"httpbin.org\",
+      \n    \"User-Agent\": \"python-httpx/0.23.0\", \n    \"X-Amzn-Trace-Id\": \"Root=1-62a62a8d-5f39b5c50c744da821d6ea99\"\n
+      \ }, \n  \"method\": \"GET\", \n  \"origin\": \"146.200.25.115\"\n}\n"
+    headers:
+      Access-Control-Allow-Credentials:
+      - 'true'
+      Access-Control-Allow-Origin:
+      - '*'
+      Connection:
+      - keep-alive
+      Content-Encoding:
+      - gzip
+      Content-Length:
+      - '230'
+      Content-Type:
+      - application/json
+      Date:
+      - Sun, 12 Jun 2022 18:03:57 GMT
+      Server:
+      - gunicorn/19.9.0
+    http_version: HTTP/1.1
+    status_code: 200
+version: 1

tests/integration/cassettes/gzip_requests.yaml

@@ -0,0 +1,42 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate, br
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-requests/2.28.0
+    method: GET
+    uri: https://httpbin.org/gzip
+  response:
+    body:
+      string: !!binary |
+        H4sIAKwrpmIA/z2OSwrCMBCG956izLIkfQSxkl2RogfQA9R2bIM1iUkqaOndnYDIrGa+/zELDB9l
+        LfYgg5uRwYhtj86DXKDuOrQBJKR5Cuy38kZ3pld6oHu0sqTH29QGZMnVkepgtMYuKKNJcEe0vJ3U
+        C4mcjI9hpaiygqaUW7ETFYGLR8frAXXE9h1Go7nD54w++FxkYp8VsDJ4IBH6E47NmVzGqUHFkn8g
+        rJsvp2omYs8AAAA=
+    headers:
+      Access-Control-Allow-Credentials:
+      - 'true'
+      Access-Control-Allow-Origin:
+      - '*'
+      Connection:
+      - Close
+      Content-Encoding:
+      - gzip
+      Content-Length:
+      - '182'
+      Content-Type:
+      - application/json
+      Date:
+      - Sun, 12 Jun 2022 18:08:44 GMT
+      Server:
+      - Pytest-HTTPBIN/0.1.0
+    status:
+      code: 200
+      message: great
+version: 1

tests/integration/conftest.py

@@ -1,16 +0,0 @@
-import os
-import ssl
-
-import pytest
-
-
-@pytest.fixture
-def httpbin_ssl_context():
-    ssl_ca_location = os.environ["REQUESTS_CA_BUNDLE"]
-    ssl_cert_location = os.environ["REQUESTS_CA_BUNDLE"].replace("cacert.pem", "cert.pem")
-    ssl_key_location = os.environ["REQUESTS_CA_BUNDLE"].replace("cacert.pem", "key.pem")
-
-    ssl_context = ssl.create_default_context(cafile=ssl_ca_location)
-    ssl_context.load_cert_chain(ssl_cert_location, ssl_key_location)
-
-    return ssl_context

tests/integration/test_aiohttp.py

@@ -1,8 +1,10 @@
-import contextlib
 import logging
+import ssl
 import urllib.parse
 
 import pytest
+import pytest_httpbin.certs
+import yarl
 
 import vcr
 
@@ -12,12 +14,14 @@ aiohttp = pytest.importorskip("aiohttp")
 
 from .aiohttp_utils import aiohttp_app, aiohttp_request  # noqa: E402
 
+HTTPBIN_SSL_CONTEXT = ssl.create_default_context(cafile=pytest_httpbin.certs.where())
+
 
 def run_in_loop(fn):
-    with contextlib.closing(asyncio.new_event_loop()) as loop:
-        asyncio.set_event_loop(loop)
-        task = loop.create_task(fn(loop))
-        return loop.run_until_complete(task)
+    async def wrapper():
+        return await fn(asyncio.get_running_loop())
+
+    return asyncio.run(wrapper())
 
 
 def request(method, url, output="text", **kwargs):
@@ -260,6 +264,12 @@ def test_aiohttp_test_client_json(aiohttp_client, tmpdir):
     assert cassette.play_count == 1
 
 
+def test_cleanup_from_pytest_asyncio():
+    # work around https://github.com/pytest-dev/pytest-asyncio/issues/724
+    asyncio.get_event_loop().close()
+    asyncio.set_event_loop(None)
+
+
 @pytest.mark.online
 def test_redirect(tmpdir, httpbin):
     url = httpbin.url + "/redirect/2"
@@ -333,7 +343,7 @@ def test_double_requests(tmpdir, httpbin):
         assert cassette.play_count == 2
 
 
-def test_cookies(httpbin_both, httpbin_ssl_context, tmpdir):
+def test_cookies(httpbin_both, tmpdir):
     async def run(loop):
         cookies_url = httpbin_both.url + (
             "/response-headers?"
@@ -348,12 +358,12 @@ def test_cookies(httpbin_both, httpbin_ssl_context, tmpdir):
         # ------------------------- Record -------------------------- #
         with vcr.use_cassette(tmp) as cassette:
             async with aiohttp.ClientSession(loop=loop, cookie_jar=aiohttp.CookieJar(unsafe=True)) as session:
-                cookies_resp = await session.get(cookies_url, ssl=httpbin_ssl_context)
+                cookies_resp = await session.get(cookies_url, ssl=HTTPBIN_SSL_CONTEXT)
                 home_resp = await session.get(
                     home_url,
                     cookies=req_cookies,
                     headers=req_headers,
-                    ssl=httpbin_ssl_context,
+                    ssl=HTTPBIN_SSL_CONTEXT,
                 )
                 assert cassette.play_count == 0
         assert_responses(cookies_resp, home_resp)
@@ -361,12 +371,12 @@ def test_cookies(httpbin_both, httpbin_ssl_context, tmpdir):
         # -------------------------- Play --------------------------- #
         with vcr.use_cassette(tmp, record_mode=vcr.mode.NONE) as cassette:
             async with aiohttp.ClientSession(loop=loop, cookie_jar=aiohttp.CookieJar(unsafe=True)) as session:
-                cookies_resp = await session.get(cookies_url, ssl=httpbin_ssl_context)
+                cookies_resp = await session.get(cookies_url, ssl=HTTPBIN_SSL_CONTEXT)
                 home_resp = await session.get(
                     home_url,
                     cookies=req_cookies,
                     headers=req_headers,
-                    ssl=httpbin_ssl_context,
+                    ssl=HTTPBIN_SSL_CONTEXT,
                 )
                 assert cassette.play_count == 2
         assert_responses(cookies_resp, home_resp)
@@ -383,7 +393,7 @@ def test_cookies(httpbin_both, httpbin_ssl_context, tmpdir):
     run_in_loop(run)
 
 
-def test_cookies_redirect(httpbin_both, httpbin_ssl_context, tmpdir):
+def test_cookies_redirect(httpbin_both, tmpdir):
     async def run(loop):
         # Sets cookie as provided by the query string and redirects
         cookies_url = httpbin_both.url + "/cookies/set?Cookie_1=Val_1"
@@ -392,9 +402,9 @@ def test_cookies_redirect(httpbin_both, httpbin_ssl_context, tmpdir):
         # ------------------------- Record -------------------------- #
         with vcr.use_cassette(tmp) as cassette:
             async with aiohttp.ClientSession(loop=loop, cookie_jar=aiohttp.CookieJar(unsafe=True)) as session:
-                cookies_resp = await session.get(cookies_url, ssl=httpbin_ssl_context)
+                cookies_resp = await session.get(cookies_url, ssl=HTTPBIN_SSL_CONTEXT)
                 assert not cookies_resp.cookies
-                cookies = session.cookie_jar.filter_cookies(cookies_url)
+                cookies = session.cookie_jar.filter_cookies(yarl.URL(cookies_url))
                 assert cookies["Cookie_1"].value == "Val_1"
                 assert cassette.play_count == 0
 
@@ -403,9 +413,9 @@ def test_cookies_redirect(httpbin_both, httpbin_ssl_context, tmpdir):
         # -------------------------- Play --------------------------- #
         with vcr.use_cassette(tmp, record_mode=vcr.mode.NONE) as cassette:
             async with aiohttp.ClientSession(loop=loop, cookie_jar=aiohttp.CookieJar(unsafe=True)) as session:
-                cookies_resp = await session.get(cookies_url, ssl=httpbin_ssl_context)
+                cookies_resp = await session.get(cookies_url, ssl=HTTPBIN_SSL_CONTEXT)
                 assert not cookies_resp.cookies
-                cookies = session.cookie_jar.filter_cookies(cookies_url)
+                cookies = session.cookie_jar.filter_cookies(yarl.URL(cookies_url))
                 assert cookies["Cookie_1"].value == "Val_1"
                 assert cassette.play_count == 2
 
@@ -417,9 +427,9 @@ def test_cookies_redirect(httpbin_both, httpbin_ssl_context, tmpdir):
                 "Cookie_1=Val_1; Expires=Wed, 21 Oct 2015 07:28:00 GMT",
             ]
             async with aiohttp.ClientSession(loop=loop, cookie_jar=aiohttp.CookieJar(unsafe=True)) as session:
-                cookies_resp = await session.get(cookies_url, ssl=httpbin_ssl_context)
+                cookies_resp = await session.get(cookies_url, ssl=HTTPBIN_SSL_CONTEXT)
                 assert not cookies_resp.cookies
-                cookies = session.cookie_jar.filter_cookies(cookies_url)
+                cookies = session.cookie_jar.filter_cookies(yarl.URL(cookies_url))
                 assert cookies["Cookie_1"].value == "Val_1"
 
     run_in_loop(run)

tests/integration/test_basic.py

@@ -39,7 +39,7 @@ def test_basic_json_use(tmpdir, httpbin):
     test_fixture = str(tmpdir.join("synopsis.json"))
     with vcr.use_cassette(test_fixture, serializer="json"):
         response = urlopen(httpbin.url).read()
-        assert b"A simple HTTP Request & Response Service." in response
+        assert b"HTTP Request & Response Service" in response
 
 
 def test_patched_content(tmpdir, httpbin):

tests/integration/test_config.py

@@ -5,6 +5,7 @@ from urllib.request import urlopen
 import pytest
 
 import vcr
+from vcr.cassette import Cassette
 
 
 @pytest.mark.online
@@ -85,3 +86,21 @@ def test_dont_record_on_exception(tmpdir, httpbin):
             assert b"Not in content" in urlopen(httpbin.url).read()
 
     assert not os.path.exists(str(tmpdir.join("dontsave2.yml")))
+
+
+def test_set_drop_unused_requests(tmpdir, httpbin):
+    my_vcr = vcr.VCR(drop_unused_requests=True)
+    file = str(tmpdir.join("test.yaml"))
+
+    with my_vcr.use_cassette(file):
+        urlopen(httpbin.url)
+        urlopen(httpbin.url + "/get")
+
+    cassette = Cassette.load(path=file)
+    assert len(cassette) == 2
+
+    with my_vcr.use_cassette(file):
+        urlopen(httpbin.url)
+
+    cassette = Cassette.load(path=file)
+    assert len(cassette) == 1

tests/integration/test_filter.py

@@ -5,10 +5,11 @@ from urllib.parse import urlencode
 from urllib.request import Request, urlopen
 
 import pytest
-from assertions import assert_cassette_has_one_response, assert_is_json_bytes
 
 import vcr
 
+from ..assertions import assert_cassette_has_one_response, assert_is_json_bytes
+
 
 def _request_with_auth(url, username, password):
     request = Request(url)

tests/integration/test_httplib2.py

@@ -1,12 +1,14 @@
 """Integration tests with httplib2"""
+
 from urllib.parse import urlencode
 
 import pytest
 import pytest_httpbin.certs
-from assertions import assert_cassette_has_one_response
 
 import vcr
 
+from ..assertions import assert_cassette_has_one_response
+
 httplib2 = pytest.importorskip("httplib2")
 
 

tests/integration/test_httpx.py

@@ -1,7 +1,11 @@
+import os
+
 import pytest
 
 import vcr
 
+from ..assertions import assert_is_json_bytes
+
 asyncio = pytest.importorskip("asyncio")
 httpx = pytest.importorskip("httpx")
 
@@ -28,25 +32,37 @@ class DoSyncRequest(BaseDoRequest):
     _client_class = httpx.Client
 
     def __enter__(self):
+        self._client = self._make_client()
         return self
 
     def __exit__(self, *args):
-        pass
+        self._client.close()
+        del self._client
 
     @property
     def client(self):
         try:
             return self._client
-        except AttributeError:
-            self._client = self._make_client()
-            return self._client
+        except AttributeError as e:
+            raise ValueError('To access sync client, use "with do_request() as client"') from e
 
     def __call__(self, *args, **kwargs):
-        return self.client.request(*args, timeout=60, **kwargs)
+        if hasattr(self, "_client"):
+            return self.client.request(*args, timeout=60, **kwargs)
+
+        # Use one-time context and dispose of the client afterwards
+        with self:
+            return self.client.request(*args, timeout=60, **kwargs)
 
     def stream(self, *args, **kwargs):
-        with self.client.stream(*args, **kwargs) as response:
-            return b"".join(response.iter_bytes())
+        if hasattr(self, "_client"):
+            with self.client.stream(*args, **kwargs) as response:
+                return b"".join(response.iter_bytes())
+
+        # Use one-time context and dispose of the client afterwards
+        with self:
+            with self.client.stream(*args, **kwargs) as response:
+                return b"".join(response.iter_bytes())
 
 
 class DoAsyncRequest(BaseDoRequest):
@@ -207,22 +223,6 @@ def test_redirect(httpbin, yml, do_request):
     assert cassette_response.request.headers.items() == response.request.headers.items()
 
 
-@pytest.mark.online
-def test_work_with_gzipped_data(httpbin, do_request, yml):
-    url = httpbin.url + "/gzip?foo=bar"
-    headers = {"accept-encoding": "deflate, gzip"}
-
-    with vcr.use_cassette(yml):
-        do_request(headers=headers)("GET", url)
-
-    with vcr.use_cassette(yml) as cassette:
-        cassette_response = do_request(headers=headers)("GET", url)
-
-        assert cassette_response.headers["content-encoding"] == "gzip"
-        assert cassette_response.read()
-        assert cassette.play_count == 1
-
-
 @pytest.mark.online
 @pytest.mark.parametrize("url", ["https://github.com/kevin1024/vcrpy/issues/" + str(i) for i in range(3, 6)])
 def test_simple_fetching(do_request, yml, url):
@@ -285,3 +285,77 @@ def test_stream(tmpdir, httpbin, do_request):
         assert cassette_content == response_content
         assert len(cassette_content) == 512
         assert cassette.play_count == 1
+
+
+# Regular cassette formats support the status reason,
+# but the old HTTPX cassette format does not.
+@pytest.mark.parametrize(
+    "cassette_name,reason",
+    [
+        ("requests", "great"),
+        ("httpx_old_format", "OK"),
+    ],
+)
+def test_load_cassette_format(do_request, cassette_name, reason):
+    mydir = os.path.dirname(os.path.realpath(__file__))
+    yml = f"{mydir}/cassettes/gzip_{cassette_name}.yaml"
+    url = "https://httpbin.org/gzip"
+
+    with vcr.use_cassette(yml) as cassette:
+        cassette_response = do_request()("GET", url)
+        assert str(cassette_response.request.url) == url
+        assert cassette.play_count == 1
+
+        # Should be able to load up the JSON inside,
+        # regardless whether the content is the gzipped
+        # in the cassette or not.
+        json = cassette_response.json()
+        assert json["method"] == "GET", json
+        assert cassette_response.status_code == 200
+        assert cassette_response.reason_phrase == reason
+
+
+def test_gzip__decode_compressed_response_false(tmpdir, httpbin, do_request):
+    """
+    Ensure that httpx is able to automatically decompress the response body.
+    """
+    for _ in range(2):  # one for recording, one for re-playing
+        with vcr.use_cassette(str(tmpdir.join("gzip.yaml"))) as cassette:
+            response = do_request()("GET", httpbin + "/gzip")
+            assert response.headers["content-encoding"] == "gzip"  # i.e. not removed
+            # The content stored in the cassette should be gzipped.
+            assert cassette.responses[0]["body"]["string"][:2] == b"\x1f\x8b"
+            assert_is_json_bytes(response.content)  # i.e. uncompressed bytes
+
+
+def test_gzip__decode_compressed_response_true(do_request, tmpdir, httpbin):
+    url = httpbin + "/gzip"
+
+    expected_response = do_request()("GET", url)
+    expected_content = expected_response.content
+    assert expected_response.headers["content-encoding"] == "gzip"  # self-test
+
+    with vcr.use_cassette(
+        str(tmpdir.join("decode_compressed.yaml")),
+        decode_compressed_response=True,
+    ) as cassette:
+        r = do_request()("GET", url)
+        assert r.headers["content-encoding"] == "gzip"  # i.e. not removed
+        content_length = r.headers["content-length"]
+        assert r.content == expected_content
+
+    # Has the cassette body been decompressed?
+    cassette_response_body = cassette.responses[0]["body"]["string"]
+    assert isinstance(cassette_response_body, str)
+
+    # Content should be JSON.
+    assert cassette_response_body[0:1] == "{"
+
+    with vcr.use_cassette(str(tmpdir.join("decode_compressed.yaml")), decode_compressed_response=True):
+        r = httpx.get(url)
+        assert "content-encoding" not in r.headers  # i.e. removed
+        assert r.content == expected_content
+
+        # As the content is uncompressed, it should have a bigger
+        # length than the compressed version.
+        assert r.headers["content-length"] > content_length

tests/integration/test_proxy.py

@@ -1,5 +1,6 @@
 """Test using a proxy."""
 
+import asyncio
 import http.server
 import socketserver
 import threading
@@ -36,15 +37,44 @@ class Proxy(http.server.SimpleHTTPRequestHandler):
         self.end_headers()
         self.copyfile(upstream_response, self.wfile)
 
+    def do_CONNECT(self):
+        host, port = self.path.split(":")
+
+        asyncio.run(self._tunnel(host, port, self.connection))
+
+    async def _tunnel(self, host, port, client_sock):
+        target_r, target_w = await asyncio.open_connection(host=host, port=port)
+
+        self.send_response(http.HTTPStatus.OK)
+        self.end_headers()
+
+        source_r, source_w = await asyncio.open_connection(sock=client_sock)
+
+        async def channel(reader, writer):
+            while True:
+                data = await reader.read(1024)
+                if not data:
+                    break
+                writer.write(data)
+                await writer.drain()
+
+            writer.close()
+            await writer.wait_closed()
+
+        await asyncio.gather(
+            channel(target_r, source_w),
+            channel(source_r, target_w),
+        )
+
 
 @pytest.fixture(scope="session")
 def proxy_server():
-    httpd = socketserver.ThreadingTCPServer(("", 0), Proxy)
-    proxy_process = threading.Thread(target=httpd.serve_forever)
-    proxy_process.start()
-    yield "http://{}:{}".format(*httpd.server_address)
-    httpd.shutdown()
-    proxy_process.join()
+    with socketserver.ThreadingTCPServer(("", 0), Proxy) as httpd:
+        proxy_process = threading.Thread(target=httpd.serve_forever)
+        proxy_process.start()
+        yield "http://{}:{}".format(*httpd.server_address)
+        httpd.shutdown()
+        proxy_process.join()
 
 
 def test_use_proxy(tmpdir, httpbin, proxy_server):
@@ -52,10 +82,26 @@ def test_use_proxy(tmpdir, httpbin, proxy_server):
     with vcr.use_cassette(str(tmpdir.join("proxy.yaml"))):
         response = requests.get(httpbin.url, proxies={"http": proxy_server})
 
-    with vcr.use_cassette(str(tmpdir.join("proxy.yaml")), mode="once") as cassette:
+    with vcr.use_cassette(str(tmpdir.join("proxy.yaml")), mode="none") as cassette:
         cassette_response = requests.get(httpbin.url, proxies={"http": proxy_server})
 
-    for key in set(cassette_response.headers.keys()) & set(response.headers.keys()):
-        assert cassette_response.headers[key] == response.headers[key]
     assert cassette_response.headers == response.headers
     assert cassette.play_count == 1
+
+
+def test_use_https_proxy(tmpdir, httpbin_secure, proxy_server):
+    """Ensure that it works with an HTTPS proxy."""
+    with vcr.use_cassette(str(tmpdir.join("proxy.yaml"))):
+        response = requests.get(httpbin_secure.url, proxies={"https": proxy_server})
+
+    with vcr.use_cassette(str(tmpdir.join("proxy.yaml")), mode="none") as cassette:
+        cassette_response = requests.get(
+            httpbin_secure.url,
+            proxies={"https": proxy_server},
+        )
+
+    assert cassette_response.headers == response.headers
+    assert cassette.play_count == 1
+
+    # The cassette URL points to httpbin, not the proxy
+    assert cassette.requests[0].url == httpbin_secure.url + "/"

tests/integration/test_register_persister.py

@@ -66,7 +66,7 @@ def test_load_cassette_with_custom_persister(tmpdir, httpbin):
 
     with my_vcr.use_cassette(test_fixture, serializer="json"):
         response = urlopen(httpbin.url).read()
-        assert b"A simple HTTP Request & Response Service." in response
+        assert b"HTTP Request & Response Service" in response
 
 
 def test_load_cassette_persister_exception_handling(tmpdir, httpbin):

tests/integration/test_requests.py

@@ -1,9 +1,11 @@
 """Test requests' interaction with vcr"""
+
 import pytest
-from assertions import assert_cassette_empty, assert_is_json_bytes
 
 import vcr
 
+from ..assertions import assert_cassette_empty, assert_is_json_bytes
+
 requests = pytest.importorskip("requests")
 
 
@@ -264,7 +266,7 @@ def test_nested_cassettes_with_session_created_before_nesting(httpbin_both, tmpd
 def test_post_file(tmpdir, httpbin_both):
     """Ensure that we handle posting a file."""
     url = httpbin_both + "/post"
-    with vcr.use_cassette(str(tmpdir.join("post_file.yaml"))) as cass, open("tox.ini", "rb") as f:
+    with vcr.use_cassette(str(tmpdir.join("post_file.yaml"))) as cass, open(".editorconfig", "rb") as f:
         original_response = requests.post(url, f).content
 
     # This also tests that we do the right thing with matching the body when they are files.
@@ -272,10 +274,10 @@ def test_post_file(tmpdir, httpbin_both):
         str(tmpdir.join("post_file.yaml")),
         match_on=("method", "scheme", "host", "port", "path", "query", "body"),
     ) as cass:
-        with open("tox.ini", "rb") as f:
-            tox_content = f.read()
-        assert cass.requests[0].body.read() == tox_content
-        with open("tox.ini", "rb") as f:
+        with open(".editorconfig", "rb") as f:
+            editorconfig = f.read()
+        assert cass.requests[0].body.read() == editorconfig
+        with open(".editorconfig", "rb") as f:
             new_response = requests.post(url, f).content
         assert original_response == new_response
 

tests/integration/test_stubs.py

@@ -2,10 +2,10 @@ import http.client as httplib
 import json
 import zlib
 
-from assertions import assert_is_json_bytes
-
 import vcr
 
+from ..assertions import assert_is_json_bytes
+
 
 def _headers_are_case_insensitive(host, port):
     conn = httplib.HTTPConnection(host, port)

tests/integration/test_tornado.py

@@ -1,19 +1,45 @@
 """Test requests' interaction with vcr"""
 
+import asyncio
+import functools
+import inspect
 import json
 
 import pytest
-from assertions import assert_cassette_empty, assert_is_json_bytes
 
 import vcr
 from vcr.errors import CannotOverwriteExistingCassetteException
 
+from ..assertions import assert_cassette_empty, assert_is_json_bytes
+
 tornado = pytest.importorskip("tornado")
+gen = pytest.importorskip("tornado.gen")
 http = pytest.importorskip("tornado.httpclient")
 
 # whether the current version of Tornado supports the raise_error argument for
 # fetch().
 supports_raise_error = tornado.version_info >= (4,)
+raise_error_for_response_code_only = tornado.version_info >= (6,)
+
+
+def gen_test(func):
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+        async def coro():
+            return await gen.coroutine(func)(*args, **kwargs)
+
+        return asyncio.run(coro())
+
+    # Patch the signature so pytest can inject fixtures
+    # we can't use wrapt.decorator because it returns a generator function
+    wrapper.__signature__ = inspect.signature(func)
+    return wrapper
+
+
+@pytest.fixture(params=["https", "http"])
+def scheme(request):
+    """Fixture that returns both http and https."""
+    return request.param
 
 
 @pytest.fixture(params=["simple", "curl", "default"])
@@ -43,7 +69,8 @@ def post(client, url, data=None, **kwargs):
     return client.fetch(http.HTTPRequest(url, method="POST", **kwargs))
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_status_code(get_client, scheme, tmpdir):
     """Ensure that we can read the status code"""
     url = scheme + "://httpbin.org/"
@@ -55,7 +82,8 @@ def test_status_code(get_client, scheme, tmpdir):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_headers(get_client, scheme, tmpdir):
     """Ensure that we can read the headers back"""
     url = scheme + "://httpbin.org/"
@@ -67,7 +95,8 @@ def test_headers(get_client, scheme, tmpdir):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_body(get_client, tmpdir, scheme):
     """Ensure the responses are all identical enough"""
 
@@ -80,7 +109,7 @@ def test_body(get_client, tmpdir, scheme):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@gen_test
 def test_effective_url(get_client, tmpdir, httpbin):
     """Ensure that the effective_url is captured"""
     url = httpbin.url + "/redirect/1"
@@ -93,7 +122,8 @@ def test_effective_url(get_client, tmpdir, httpbin):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_auth(get_client, tmpdir, scheme):
     """Ensure that we can handle basic auth"""
     auth = ("user", "passwd")
@@ -108,7 +138,8 @@ def test_auth(get_client, tmpdir, scheme):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_auth_failed(get_client, tmpdir, scheme):
     """Ensure that we can save failed auth statuses"""
     auth = ("user", "wrongwrongwrong")
@@ -131,7 +162,8 @@ def test_auth_failed(get_client, tmpdir, scheme):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_post(get_client, tmpdir, scheme):
     """Ensure that we can post and cache the results"""
     data = {"key1": "value1", "key2": "value2"}
@@ -146,10 +178,10 @@ def test_post(get_client, tmpdir, scheme):
     assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
-def test_redirects(get_client, tmpdir, scheme):
+@gen_test
+def test_redirects(get_client, tmpdir, httpbin):
     """Ensure that we can handle redirects"""
-    url = scheme + "://mockbin.org/redirect/301?url=bytes/1024"
+    url = httpbin + "/redirect-to?url=bytes/1024&status_code=301"
     with vcr.use_cassette(str(tmpdir.join("requests.yaml"))):
         content = (yield get(get_client(), url)).body
 
@@ -158,7 +190,8 @@ def test_redirects(get_client, tmpdir, scheme):
         assert cass.play_count == 1
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_cross_scheme(get_client, tmpdir, scheme):
     """Ensure that requests between schemes are treated separately"""
     # First fetch a url under http, and then again under https and then
@@ -177,7 +210,8 @@ def test_cross_scheme(get_client, tmpdir, scheme):
         assert cass.play_count == 2
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_gzip(get_client, tmpdir, scheme):
     """
     Ensure that httpclient is able to automatically decompress the response
@@ -202,7 +236,8 @@ def test_gzip(get_client, tmpdir, scheme):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_https_with_cert_validation_disabled(get_client, tmpdir):
     cass_path = str(tmpdir.join("cert_validation_disabled.yaml"))
 
@@ -214,7 +249,7 @@ def test_https_with_cert_validation_disabled(get_client, tmpdir):
         assert 1 == cass.play_count
 
 
-@pytest.mark.gen_test
+@gen_test
 def test_unsupported_features_raises_in_future(get_client, tmpdir):
     """Ensure that the exception for an AsyncHTTPClient feature not being
     supported is raised inside the future."""
@@ -232,7 +267,11 @@ def test_unsupported_features_raises_in_future(get_client, tmpdir):
 
 
 @pytest.mark.skipif(not supports_raise_error, reason="raise_error unavailable in tornado <= 3")
-@pytest.mark.gen_test
+@pytest.mark.skipif(
+    raise_error_for_response_code_only,
+    reason="raise_error only ignores HTTPErrors due to response code",
+)
+@gen_test
 def test_unsupported_features_raise_error_disabled(get_client, tmpdir):
     """Ensure that the exception for an AsyncHTTPClient feature not being
     supported is not raised if raise_error=False."""
@@ -251,7 +290,8 @@ def test_unsupported_features_raise_error_disabled(get_client, tmpdir):
     assert "not yet supported by VCR" in str(response.error)
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_cannot_overwrite_cassette_raises_in_future(get_client, tmpdir):
     """Ensure that CannotOverwriteExistingCassetteException is raised inside
     the future."""
@@ -267,7 +307,11 @@ def test_cannot_overwrite_cassette_raises_in_future(get_client, tmpdir):
 
 
 @pytest.mark.skipif(not supports_raise_error, reason="raise_error unavailable in tornado <= 3")
-@pytest.mark.gen_test
+@pytest.mark.skipif(
+    raise_error_for_response_code_only,
+    reason="raise_error only ignores HTTPErrors due to response code",
+)
+@gen_test
 def test_cannot_overwrite_cassette_raise_error_disabled(get_client, tmpdir):
     """Ensure that CannotOverwriteExistingCassetteException is not raised if
     raise_error=False in the fetch() call."""
@@ -281,14 +325,14 @@ def test_cannot_overwrite_cassette_raise_error_disabled(get_client, tmpdir):
     assert isinstance(response.error, CannotOverwriteExistingCassetteException)
 
 
-@pytest.mark.gen_test
+@gen_test
 @vcr.use_cassette(path_transformer=vcr.default_vcr.ensure_suffix(".yaml"))
 def test_tornado_with_decorator_use_cassette(get_client):
     response = yield get_client().fetch(http.HTTPRequest("http://www.google.com/", method="GET"))
     assert response.body.decode("utf-8") == "not actually google"
 
 
-@pytest.mark.gen_test
+@gen_test
 @vcr.use_cassette(path_transformer=vcr.default_vcr.ensure_suffix(".yaml"))
 def test_tornado_exception_can_be_caught(get_client):
     try:
@@ -302,7 +346,8 @@ def test_tornado_exception_can_be_caught(get_client):
         assert e.code == 404
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_existing_references_get_patched(tmpdir):
     from tornado.httpclient import AsyncHTTPClient
 
@@ -315,7 +360,8 @@ def test_existing_references_get_patched(tmpdir):
         assert cass.play_count == 1
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_existing_instances_get_patched(get_client, tmpdir):
     """Ensure that existing instances of AsyncHTTPClient get patched upon
     entering VCR context."""
@@ -330,7 +376,8 @@ def test_existing_instances_get_patched(get_client, tmpdir):
         assert cass.play_count == 1
 
 
-@pytest.mark.gen_test
+@pytest.mark.online
+@gen_test
 def test_request_time_is_set(get_client, tmpdir):
     """Ensures that the request_time on HTTPResponses is set."""
 

tests/integration/test_urllib2.py

@@ -5,12 +5,13 @@ from urllib.parse import urlencode
 from urllib.request import urlopen
 
 import pytest_httpbin.certs
-from assertions import assert_cassette_has_one_response
 from pytest import mark
 
 # Internal imports
 import vcr
 
+from ..assertions import assert_cassette_has_one_response
+
 
 def urlopen_with_cafile(*args, **kwargs):
     context = ssl.create_default_context(cafile=pytest_httpbin.certs.where())

tests/integration/test_urllib3.py

@@ -4,12 +4,13 @@
 
 import pytest
 import pytest_httpbin
-from assertions import assert_cassette_empty, assert_is_json_bytes
 
 import vcr
 from vcr.patch import force_reset
 from vcr.stubs.compat import get_headers
 
+from ..assertions import assert_cassette_empty, assert_is_json_bytes
+
 urllib3 = pytest.importorskip("urllib3")
 
 

tests/integration/test_wild.py

@@ -63,12 +63,12 @@ def test_flickr_should_respond_with_200(tmpdir):
 def test_cookies(tmpdir, httpbin):
     testfile = str(tmpdir.join("cookies.yml"))
     with vcr.use_cassette(testfile):
-        s = requests.Session()
-        s.get(httpbin.url + "/cookies/set?k1=v1&k2=v2")
-        assert s.cookies.keys() == ["k1", "k2"]
+        with requests.Session() as s:
+            s.get(httpbin.url + "/cookies/set?k1=v1&k2=v2")
+            assert s.cookies.keys() == ["k1", "k2"]
 
-        r2 = s.get(httpbin.url + "/cookies")
-        assert sorted(r2.json()["cookies"].keys()) == ["k1", "k2"]
+            r2 = s.get(httpbin.url + "/cookies")
+            assert sorted(r2.json()["cookies"].keys()) == ["k1", "k2"]
 
 
 @pytest.mark.online

tests/unit/test_cassettes.py

@@ -11,6 +11,7 @@ import yaml
 from vcr.cassette import Cassette
 from vcr.errors import UnhandledHTTPRequestError
 from vcr.patch import force_reset
+from vcr.request import Request
 from vcr.stubs import VCRHTTPSConnection
 
 
@@ -410,3 +411,25 @@ def test_find_requests_with_most_matches_many_similar_requests(mock_get_matchers
         (1, ["method", "path"], [("query", "failed : query")]),
         (3, ["method", "path"], [("query", "failed : query")]),
     ]
+
+
+def test_used_interactions(tmpdir):
+    interactions = [
+        {"request": {"body": "", "uri": "foo1", "method": "GET", "headers": {}}, "response": "bar1"},
+        {"request": {"body": "", "uri": "foo2", "method": "GET", "headers": {}}, "response": "bar2"},
+        {"request": {"body": "", "uri": "foo3", "method": "GET", "headers": {}}, "response": "bar3"},
+    ]
+    file = tmpdir.join("test_cassette.yml")
+    file.write(yaml.dump({"interactions": [interactions[0], interactions[1]]}))
+
+    cassette = Cassette.load(path=str(file))
+    request = Request._from_dict(interactions[1]["request"])
+    cassette.play_response(request)
+    assert len(cassette._played_interactions) < len(cassette._old_interactions)
+
+    request = Request._from_dict(interactions[2]["request"])
+    cassette.append(request, interactions[2]["response"])
+    assert len(cassette._new_interactions()) == 1
+
+    used_interactions = cassette._played_interactions + cassette._new_interactions()
+    assert len(used_interactions) == 2

tests/unit/test_stubs.py

@@ -1,8 +1,12 @@
+import contextlib
+import http.client as httplib
+from io import BytesIO
+from tempfile import NamedTemporaryFile
 from unittest import mock
 
 from pytest import mark
 
-from vcr import mode
+from vcr import mode, use_cassette
 from vcr.cassette import Cassette
 from vcr.stubs import VCRHTTPSConnection
 
@@ -16,7 +20,56 @@ class TestVCRConnection:
     @mark.online
     @mock.patch("vcr.cassette.Cassette.can_play_response_for", return_value=False)
     def testing_connect(*args):
-        vcr_connection = VCRHTTPSConnection("www.google.com")
-        vcr_connection.cassette = Cassette("test", record_mode=mode.ALL)
-        vcr_connection.real_connection.connect()
-        assert vcr_connection.real_connection.sock is not None
+        with contextlib.closing(VCRHTTPSConnection("www.google.com")) as vcr_connection:
+            vcr_connection.cassette = Cassette("test", record_mode=mode.ALL)
+            vcr_connection.real_connection.connect()
+            assert vcr_connection.real_connection.sock is not None
+
+    def test_body_consumed_once_stream(self, tmpdir, httpbin):
+        self._test_body_consumed_once(
+            tmpdir,
+            httpbin,
+            BytesIO(b"1234567890"),
+            BytesIO(b"9876543210"),
+            BytesIO(b"9876543210"),
+        )
+
+    def test_body_consumed_once_iterator(self, tmpdir, httpbin):
+        self._test_body_consumed_once(
+            tmpdir,
+            httpbin,
+            iter([b"1234567890"]),
+            iter([b"9876543210"]),
+            iter([b"9876543210"]),
+        )
+
+    # data2 and data3 should serve the same data, potentially as iterators
+    def _test_body_consumed_once(
+        self,
+        tmpdir,
+        httpbin,
+        data1,
+        data2,
+        data3,
+    ):
+        with NamedTemporaryFile(dir=tmpdir, suffix=".yml") as f:
+            testpath = f.name
+            # NOTE: ``use_cassette`` is not okay with the file existing
+            #       already.  So we using ``.close()`` to not only
+            #       close but also delete the empty file, before we start.
+            f.close()
+            host, port = httpbin.host, httpbin.port
+            match_on = ["method", "uri", "body"]
+            with use_cassette(testpath, match_on=match_on):
+                conn1 = httplib.HTTPConnection(host, port)
+                conn1.request("POST", "/anything", body=data1)
+                conn1.getresponse()
+                conn2 = httplib.HTTPConnection(host, port)
+                conn2.request("POST", "/anything", body=data2)
+                conn2.getresponse()
+            with use_cassette(testpath, match_on=match_on) as cass:
+                conn3 = httplib.HTTPConnection(host, port)
+                conn3.request("POST", "/anything", body=data3)
+                conn3.getresponse()
+            assert cass.play_counts[0] == 0
+            assert cass.play_counts[1] == 1

tests/unit/test_util.py

@@ -0,0 +1,33 @@
+from io import BytesIO, StringIO
+
+import pytest
+
+from vcr import request
+from vcr.util import read_body
+
+
+@pytest.mark.parametrize(
+    "input_, expected_output",
+    [
+        (BytesIO(b"Stream"), b"Stream"),
+        (StringIO("Stream"), b"Stream"),
+        (iter(["StringIter"]), b"StringIter"),
+        (iter(["String", "Iter"]), b"StringIter"),
+        (iter([b"BytesIter"]), b"BytesIter"),
+        (iter([b"Bytes", b"Iter"]), b"BytesIter"),
+        (iter([70, 111, 111]), b"Foo"),
+        (iter([]), b""),
+        ("String", b"String"),
+        (b"Bytes", b"Bytes"),
+    ],
+)
+def test_read_body(input_, expected_output):
+    r = request.Request("POST", "http://host.com/", input_, {})
+    assert read_body(r) == expected_output
+
+
+def test_unsupported_read_body():
+    r = request.Request("POST", "http://host.com/", iter([[]]), {})
+    with pytest.raises(ValueError) as excinfo:
+        assert read_body(r)
+    assert excinfo.value.args == ("Body type <class 'list'> not supported",)

tests/unit/test_vcr.py

@@ -372,3 +372,19 @@ def test_path_class_as_cassette():
     )
     with use_cassette(path):
         pass
+
+
+def test_use_cassette_generator_return():
+    ret_val = object()
+
+    vcr = VCR()
+
+    @vcr.use_cassette("test")
+    def gen():
+        return ret_val
+        yield
+
+    with pytest.raises(StopIteration) as exc_info:
+        next(gen())
+
+    assert exc_info.value.value is ret_val

tox.ini

@@ -1,87 +0,0 @@
-[tox]
-skip_missing_interpreters=true
-envlist =
-  cov-clean,
-  lint,
-  {py38,py39,py310,py311,py312}-{requests-urllib3-1,httplib2,urllib3-1,tornado4,boto3,aiohttp,httpx},
-  {py310,py311,py312}-{requests-urllib3-2,urllib3-2},
-  {pypy3}-{requests-urllib3-1,httplib2,urllib3-1,tornado4,boto3},
-  #{py310}-httpx019,
-  cov-report
-
-
-[gh-actions]
-python =
-    3.8: py38
-    3.9: py39
-    3.10: py310, lint
-    3.11: py311
-    3.12: py312
-    pypy-3: pypy3
-
-# Coverage environment tasks: cov-clean and cov-report
-# https://pytest-cov.readthedocs.io/en/latest/tox.html
-[testenv:cov-clean]
-deps = coverage
-skip_install=true
-commands = coverage erase
-
-[testenv:cov-report]
-deps = coverage
-skip_install=true
-commands =
-  coverage html
-  coverage report --fail-under=90
-
-[testenv:lint]
-skipsdist = True
-commands =
-    black --version
-    black --check --diff .
-    ruff --version
-    ruff check .
-deps =
-  black
-  ruff
-basepython = python3.10
-
-[testenv]
-# Need to use develop install so that paths
-# for aggregate code coverage combine
-usedevelop=true
-commands =
-    ./runtests.sh --cov=./vcr --cov-branch --cov-report=xml --cov-append {posargs}
-allowlist_externals =
-    ./runtests.sh
-deps =
-    Werkzeug==2.0.3
-    pytest
-    pytest-httpbin>=1.0.1
-    pytest-cov
-    PyYAML
-    ipaddress
-    requests: requests>=2.22.0
-    httplib2: httplib2
-    urllib3-1: urllib3<2
-    urllib3-2: urllib3<3
-    boto3: boto3
-    aiohttp: aiohttp
-    aiohttp: pytest-asyncio
-    aiohttp: pytest-aiohttp
-    httpx: httpx
-    {py38,py39,py310}-{httpx}: httpx
-    {py38,py39,py310}-{httpx}: pytest-asyncio
-    httpx: httpx>0.19
-    httpx019: httpx==0.19
-    {py38,py39,py310}-{httpx}: pytest-asyncio
-depends =
-  lint,{py38,py39,py310,py311,py312,pypy3}-{requests-urllib3-1,httplib2,urllib3-1,tornado4,boto3},{py310,py311,py312}-{requests-urllib3-2,urllib3-2},{py38,py39,py310,py311,py312}-{aiohttp},{py38,py39,py310,py311,py312}-{httpx}: cov-clean
-  cov-report: lint,{py38,py39,py310,py311,py312,pypy3}-{requests-urllib3-1,httplib2,urllib3-1,tornado4,boto3},{py310,py311,py312}-{requests-urllib3-2,urllib3-2},{py38,py39,py310,py311,py312}-{aiohttp}
-passenv =
-    AWS_ACCESS_KEY_ID
-    AWS_DEFAULT_REGION
-    AWS_SECRET_ACCESS_KEY
-setenv =
-    # workaround for broken C extension in aiohttp
-    # see: https://github.com/aio-libs/aiohttp/issues/7229
-    py312: AIOHTTP_NO_EXTENSIONS=1

vcr/__init__.py

@@ -4,7 +4,7 @@ from logging import NullHandler
 from .config import VCR
 from .record_mode import RecordMode as mode  # noqa: F401
 
-__version__ = "5.1.0"
+__version__ = "7.0.0"
 
 logging.getLogger(__name__).addHandler(NullHandler())
 

vcr/cassette.py

@@ -3,8 +3,7 @@ import contextlib
 import copy
 import inspect
 import logging
-import sys
-from asyncio import iscoroutinefunction
+from inspect import iscoroutinefunction
 
 import wrapt
 
@@ -126,20 +125,7 @@ class CassetteContextDecorator:
         duration of the generator.
         """
         with self as cassette:
-            coroutine = fn(cassette)
-            # We don't need to catch StopIteration. The caller (Tornado's
-            # gen.coroutine, for example) will handle that.
-            to_yield = next(coroutine)
-            while True:
-                try:
-                    to_send = yield to_yield
-                except Exception:
-                    to_yield = coroutine.throw(*sys.exc_info())
-                else:
-                    try:
-                        to_yield = coroutine.send(to_send)
-                    except StopIteration:
-                        break
+            return (yield from fn(cassette))
 
     def _handle_function(self, fn):
         with self as cassette:
@@ -191,6 +177,7 @@ class Cassette:
         custom_patches=(),
         inject=False,
         allow_playback_repeats=False,
+        drop_unused_requests=False,
     ):
         self._persister = persister or FilesystemPersister
         self._path = path
@@ -203,6 +190,7 @@ class Cassette:
         self.record_mode = record_mode
         self.custom_patches = custom_patches
         self.allow_playback_repeats = allow_playback_repeats
+        self.drop_unused_requests = drop_unused_requests
 
         # self.data is the list of (req, resp) tuples
         self.data = []
@@ -210,6 +198,10 @@ class Cassette:
         self.dirty = False
         self.rewound = False
 
+        # Subsets of self.data to store old and played interactions
+        self._old_interactions = []
+        self._played_interactions = []
+
     @property
     def play_count(self):
         return sum(self.play_counts.values())
@@ -229,7 +221,7 @@ class Cassette:
 
     @property
     def write_protected(self):
-        return self.rewound and self.record_mode == RecordMode.ONCE or self.record_mode == RecordMode.NONE
+        return (self.rewound and self.record_mode == RecordMode.ONCE) or self.record_mode == RecordMode.NONE
 
     def append(self, request, response):
         """Add a request, response pair to this cassette"""
@@ -271,6 +263,7 @@ class Cassette:
         for index, response in self._responses(request):
             if self.play_counts[index] == 0 or self.allow_playback_repeats:
                 self.play_counts[index] += 1
+                self._played_interactions.append((request, response))
                 return response
         # The cassette doesn't contain the request asked for.
         raise UnhandledHTTPRequestError(
@@ -331,12 +324,36 @@ class Cassette:
 
         return final_best_matches
 
+    def _new_interactions(self):
+        """List of new HTTP interactions (request/response tuples)"""
+        new_interactions = []
+        for request, response in self.data:
+            if all(
+                not requests_match(request, old_request, self._match_on)
+                for old_request, _ in self._old_interactions
+            ):
+                new_interactions.append((request, response))
+        return new_interactions
+
     def _as_dict(self):
         return {"requests": self.requests, "responses": self.responses}
 
+    def _build_used_interactions_dict(self):
+        interactions = self._played_interactions + self._new_interactions()
+        cassete_dict = {
+            "requests": [request for request, _ in interactions],
+            "responses": [response for _, response in interactions],
+        }
+        return cassete_dict
+
     def _save(self, force=False):
+        if self.drop_unused_requests and len(self._played_interactions) < len(self._old_interactions):
+            cassete_dict = self._build_used_interactions_dict()
+            force = True
+        else:
+            cassete_dict = self._as_dict()
         if force or self.dirty:
-            self._persister.save_cassette(self._path, self._as_dict(), serializer=self._serializer)
+            self._persister.save_cassette(self._path, cassete_dict, serializer=self._serializer)
             self.dirty = False
 
     def _load(self):
@@ -344,6 +361,7 @@ class Cassette:
             requests, responses = self._persister.load_cassette(self._path, serializer=self._serializer)
             for request, response in zip(requests, responses):
                 self.append(request, response)
+                self._old_interactions.append((request, response))
             self.dirty = False
             self.rewound = True
         except (CassetteDecodeError, CassetteNotFoundError):

vcr/config.py

@@ -48,6 +48,7 @@ class VCR:
         func_path_generator=None,
         decode_compressed_response=False,
         record_on_exception=True,
+        drop_unused_requests=False,
     ):
         self.serializer = serializer
         self.match_on = match_on
@@ -81,6 +82,7 @@ class VCR:
         self.decode_compressed_response = decode_compressed_response
         self.record_on_exception = record_on_exception
         self._custom_patches = tuple(custom_patches)
+        self.drop_unused_requests = drop_unused_requests
 
     def _get_serializer(self, serializer_name):
         try:
@@ -151,6 +153,7 @@ class VCR:
             "func_path_generator": func_path_generator,
             "allow_playback_repeats": kwargs.get("allow_playback_repeats", False),
             "record_on_exception": record_on_exception,
+            "drop_unused_requests": kwargs.get("drop_unused_requests", self.drop_unused_requests),
         }
         path = kwargs.get("path")
         if path:

vcr/matchers.py

@@ -3,11 +3,10 @@ import logging
 import urllib
 import xmlrpc.client
 from string import hexdigits
-from typing import List, Set
 
 from .util import read_body
 
-_HEXDIG_CODE_POINTS: Set[int] = {ord(s.encode("ascii")) for s in hexdigits}
+_HEXDIG_CODE_POINTS: set[int] = {ord(s.encode("ascii")) for s in hexdigits}
 
 log = logging.getLogger(__name__)
 
@@ -109,7 +108,7 @@ def _dechunk(body):
     CHUNK_GAP = b"\r\n"
     BODY_LEN: int = len(body)
 
-    chunks: List[bytes] = []
+    chunks: list[bytes] = []
     pos: int = 0
 
     while True:

vcr/patch.py

@@ -1,4 +1,5 @@
 """Utilities for patching in cassettes"""
+
 import contextlib
 import functools
 import http.client as httplib
@@ -260,10 +261,14 @@ class CassettePatcherBuilder:
 
             yield cpool, "HTTPConnectionWithTimeout", VCRHTTPConnectionWithTimeout
             yield cpool, "HTTPSConnectionWithTimeout", VCRHTTPSConnectionWithTimeout
-            yield cpool, "SCHEME_TO_CONNECTION", {
-                "http": VCRHTTPConnectionWithTimeout,
-                "https": VCRHTTPSConnectionWithTimeout,
-            }
+            yield (
+                cpool,
+                "SCHEME_TO_CONNECTION",
+                {
+                    "http": VCRHTTPConnectionWithTimeout,
+                    "https": VCRHTTPSConnectionWithTimeout,
+                },
+            )
 
     @_build_patchers_from_mock_triples_decorator
     def _tornado(self):
@@ -368,10 +373,6 @@ class ConnectionRemover:
         if isinstance(connection, self._connection_class):
             self._connection_pool_to_connections.setdefault(pool, set()).add(connection)
 
-    def remove_connection_to_pool_entry(self, pool, connection):
-        if isinstance(connection, self._connection_class):
-            self._connection_pool_to_connections[self._connection_class].remove(connection)
-
     def __enter__(self):
         return self
 
@@ -382,10 +383,13 @@ class ConnectionRemover:
                 connection = pool.pool.get()
                 if isinstance(connection, self._connection_class):
                     connections.remove(connection)
+                    connection.close()
                 else:
                     readd_connections.append(connection)
             for connection in readd_connections:
                 pool._put_conn(connection)
+            for connection in connections:
+                connection.close()
 
 
 def reset_patchers():

vcr/request.py

@@ -3,7 +3,7 @@ import warnings
 from io import BytesIO
 from urllib.parse import parse_qsl, urlparse
 
-from .util import CaseInsensitiveDict
+from .util import CaseInsensitiveDict, _is_nonsequence_iterator
 
 log = logging.getLogger(__name__)
 
@@ -17,13 +17,25 @@ class Request:
         self.method = method
         self.uri = uri
         self._was_file = hasattr(body, "read")
+        self._was_iter = _is_nonsequence_iterator(body)
         if self._was_file:
             self.body = body.read()
+        elif self._was_iter:
+            self.body = list(body)
         else:
             self.body = body
         self.headers = headers
         log.debug("Invoking Request %s", self.uri)
 
+    @property
+    def uri(self):
+        return self._uri
+
+    @uri.setter
+    def uri(self, uri):
+        self._uri = uri
+        self.parsed_uri = urlparse(uri)
+
     @property
     def headers(self):
         return self._headers
@@ -36,7 +48,11 @@ class Request:
 
     @property
     def body(self):
-        return BytesIO(self._body) if self._was_file else self._body
+        if self._was_file:
+            return BytesIO(self._body)
+        if self._was_iter:
+            return iter(self._body)
+        return self._body
 
     @body.setter
     def body(self, value):
@@ -54,30 +70,29 @@ class Request:
 
     @property
     def scheme(self):
-        return urlparse(self.uri).scheme
+        return self.parsed_uri.scheme
 
     @property
     def host(self):
-        return urlparse(self.uri).hostname
+        return self.parsed_uri.hostname
 
     @property
     def port(self):
-        parse_uri = urlparse(self.uri)
-        port = parse_uri.port
+        port = self.parsed_uri.port
         if port is None:
             try:
-                port = {"https": 443, "http": 80}[parse_uri.scheme]
+                port = {"https": 443, "http": 80}[self.parsed_uri.scheme]
             except KeyError:
                 pass
         return port
 
     @property
     def path(self):
-        return urlparse(self.uri).path
+        return self.parsed_uri.path
 
     @property
     def query(self):
-        q = urlparse(self.uri).query
+        q = self.parsed_uri.query
         return sorted(parse_qsl(q))
 
     # alias for backwards compatibility

vcr/stubs/__init__.py

@@ -66,6 +66,7 @@ class VCRHTTPResponse(HTTPResponse):
         self.reason = recorded_response["status"]["message"]
         self.status = self.code = recorded_response["status"]["code"]
         self.version = None
+        self.version_string = None
         self._content = BytesIO(self.recorded_response["body"]["string"])
         self._closed = False
         self._original_response = self  # for requests.session.Session cookie extraction
@@ -186,22 +187,34 @@ class VCRConnection:
         """
         Returns empty string for the default port and ':port' otherwise
         """
-        port = self.real_connection.port
+        port = (
+            self.real_connection.port
+            if not self.real_connection._tunnel_host
+            else self.real_connection._tunnel_port
+        )
         default_port = {"https": 443, "http": 80}[self._protocol]
         return f":{port}" if port != default_port else ""
 
+    def _real_host(self):
+        """Returns the request host"""
+        if self.real_connection._tunnel_host:
+            # The real connection is to an HTTPS proxy
+            return self.real_connection._tunnel_host
+        else:
+            return self.real_connection.host
+
     def _uri(self, url):
         """Returns request absolute URI"""
         if url and not url.startswith("/"):
             # Then this must be a proxy request.
             return url
-        uri = f"{self._protocol}://{self.real_connection.host}{self._port_postfix()}{url}"
+        uri = f"{self._protocol}://{self._real_host()}{self._port_postfix()}{url}"
         log.debug("Absolute URI: %s", uri)
         return uri
 
     def _url(self, uri):
         """Returns request selector url from absolute URI"""
-        prefix = f"{self._protocol}://{self.real_connection.host}{self._port_postfix()}"
+        prefix = f"{self._protocol}://{self._real_host()}{self._port_postfix()}"
         return uri.replace(prefix, "", 1)
 
     def request(self, method, url, body=None, headers=None, *args, **kwargs):

vcr/stubs/aiohttp_stubs.py

@@ -1,10 +1,12 @@
 """Stubs for aiohttp HTTP clients"""
+
 import asyncio
 import functools
 import json
 import logging
+from collections.abc import Mapping
 from http.cookies import CookieError, Morsel, SimpleCookie
-from typing import Mapping, Union
+from typing import Union
 
 from aiohttp import ClientConnectionError, ClientResponse, CookieJar, RequestInfo, hdrs, streams
 from aiohttp.helpers import strip_auth_from_url

vcr/stubs/boto3_stubs.py

@@ -1,4 +1,5 @@
 """Stubs for boto3"""
+
 from botocore.awsrequest import AWSHTTPConnection as HTTPConnection
 from botocore.awsrequest import AWSHTTPSConnection as VerifiedHTTPSConnection
 

vcr/stubs/httpx_stubs.py

@@ -1,3 +1,4 @@
+import asyncio
 import functools
 import inspect
 import logging
@@ -6,7 +7,9 @@ from unittest.mock import MagicMock, patch
 import httpx
 
 from vcr.errors import CannotOverwriteExistingCassetteException
+from vcr.filters import decode_response
 from vcr.request import Request as VcrRequest
+from vcr.serializers.compat import convert_body_to_bytes
 
 _httpx_signature = inspect.signature(httpx.Client.request)
 
@@ -33,14 +36,29 @@ def _transform_headers(httpx_response):
     return out
 
 
-def _to_serialized_response(httpx_response):
-    return {
-        "status_code": httpx_response.status_code,
-        "http_version": httpx_response.http_version,
-        "headers": _transform_headers(httpx_response),
-        "content": httpx_response.content,
+async def _to_serialized_response(resp, aread):
+    # The content shouldn't already have been read in by HTTPX.
+    assert not hasattr(resp, "_decoder")
+
+    # Retrieve the content, but without decoding it.
+    with patch.dict(resp.headers, {"Content-Encoding": ""}):
+        if aread:
+            await resp.aread()
+        else:
+            resp.read()
+
+    result = {
+        "status": {"code": resp.status_code, "message": resp.reason_phrase},
+        "headers": _transform_headers(resp),
+        "body": {"string": resp.content},
     }
 
+    # As the content wasn't decoded, we restore the response to a state which
+    # will be capable of decoding the content for the consumer.
+    del resp._decoder
+    resp._content = resp._get_content_decoder().decode(resp.content)
+    return result
+
 
 def _from_serialized_headers(headers):
     """
@@ -57,15 +75,32 @@ def _from_serialized_headers(headers):
 @patch("httpx.Response.close", MagicMock())
 @patch("httpx.Response.read", MagicMock())
 def _from_serialized_response(request, serialized_response, history=None):
-    content = serialized_response.get("content")
+    # Cassette format generated for HTTPX requests by older versions of
+    # vcrpy. We restructure the content to resemble what a regular
+    # cassette looks like.
+    if "status_code" in serialized_response:
+        serialized_response = decode_response(
+            convert_body_to_bytes(
+                {
+                    "headers": serialized_response["headers"],
+                    "body": {"string": serialized_response["content"]},
+                    "status": {"code": serialized_response["status_code"]},
+                },
+            ),
+        )
+        extensions = None
+    else:
+        extensions = {"reason_phrase": serialized_response["status"]["message"].encode()}
+
     response = httpx.Response(
-        status_code=serialized_response.get("status_code"),
+        status_code=serialized_response["status"]["code"],
         request=request,
-        headers=_from_serialized_headers(serialized_response.get("headers")),
-        content=content,
+        headers=_from_serialized_headers(serialized_response["headers"]),
+        content=serialized_response["body"]["string"],
         history=history or [],
+        extensions=extensions,
     )
-    response._content = content
+
     return response
 
 
@@ -91,17 +126,17 @@ def _shared_vcr_send(cassette, real_send, *args, **kwargs):
     return vcr_request, None
 
 
-def _record_responses(cassette, vcr_request, real_response):
+async def _record_responses(cassette, vcr_request, real_response, aread):
     for past_real_response in real_response.history:
         past_vcr_request = _make_vcr_request(past_real_response.request)
-        cassette.append(past_vcr_request, _to_serialized_response(past_real_response))
+        cassette.append(past_vcr_request, await _to_serialized_response(past_real_response, aread))
 
     if real_response.history:
         # If there was a redirection keep we want the request which will hold the
         # final redirect value
         vcr_request = _make_vcr_request(real_response.request)
 
-    cassette.append(vcr_request, _to_serialized_response(real_response))
+    cassette.append(vcr_request, await _to_serialized_response(real_response, aread))
     return real_response
 
 
@@ -119,8 +154,8 @@ async def _async_vcr_send(cassette, real_send, *args, **kwargs):
         return response
 
     real_response = await real_send(*args, **kwargs)
-    await real_response.aread()
-    return _record_responses(cassette, vcr_request, real_response)
+    await _record_responses(cassette, vcr_request, real_response, aread=True)
+    return real_response
 
 
 def async_vcr_send(cassette, real_send):
@@ -131,6 +166,22 @@ def async_vcr_send(cassette, real_send):
     return _inner_send
 
 
+def _run_async_function(sync_func, *args, **kwargs):
+    """
+    Safely run an asynchronous function from a synchronous context.
+    Handles both cases:
+    - An event loop is already running.
+    - No event loop exists yet.
+    """
+    try:
+        asyncio.get_running_loop()
+    except RuntimeError:
+        return asyncio.run(sync_func(*args, **kwargs))
+    else:
+        # If inside a running loop, create a task and wait for it
+        return asyncio.ensure_future(sync_func(*args, **kwargs))
+
+
 def _sync_vcr_send(cassette, real_send, *args, **kwargs):
     vcr_request, response = _shared_vcr_send(cassette, real_send, *args, **kwargs)
     if response:
@@ -139,8 +190,8 @@ def _sync_vcr_send(cassette, real_send, *args, **kwargs):
         return response
 
     real_response = real_send(*args, **kwargs)
-    real_response.read()
-    return _record_responses(cassette, vcr_request, real_response)
+    _run_async_function(_record_responses, cassette, vcr_request, real_response, aread=False)
+    return real_response
 
 
 def sync_vcr_send(cassette, real_send):

vcr/stubs/tornado_stubs.py

@@ -1,4 +1,5 @@
 """Stubs for tornado HTTP clients"""
+
 import functools
 from io import BytesIO
 

vcr/util.py

@@ -89,9 +89,28 @@ def compose(*functions):
     return composed
 
 
+def _is_nonsequence_iterator(obj):
+    return hasattr(obj, "__iter__") and not isinstance(
+        obj,
+        (bytearray, bytes, dict, list, str),
+    )
+
+
 def read_body(request):
     if hasattr(request.body, "read"):
         return request.body.read()
+    if _is_nonsequence_iterator(request.body):
+        body = list(request.body)
+        if body:
+            if isinstance(body[0], str):
+                return "".join(body).encode("utf-8")
+            elif isinstance(body[0], (bytes, bytearray)):
+                return b"".join(body)
+            elif isinstance(body[0], int):
+                return bytes(body)
+            else:
+                raise ValueError(f"Body type {type(body[0])} not supported")
+        return b""
     return request.body