v4.0.x - Remove legacy python and add python3.8 support (#499)

* Drop support for legacy Python 2.7

* Upgrade Python syntax with pyupgrade --py3-plus

* Trim testing matrix to remove python2

* re-enable python3.8 in travis as tests that are not allowed to fail

* Remove some six

* The future is now

* Remove Python 2 imports

* Add back example, but change py27 to py36

* Remove redundant compat.py

* Blacken

* Credit hugovk in changelog

WIP Updating Sphinx Docs and AutoDoc

* Fix AutoDoc and update Sphinx theme to python_doc_theme

* Fix #420, autodoc even undocumented (docstring-less) method signatures

* Doc theme 'nature'. Add global TOC to doc sidebar

* Comment last reference to package six

* Changelog is now a consistent format

* Yet another documentation fix for links and title hierarchy

* Start work on new SVG logo

test SVG in README

trying to test new SVG logo in README

Apply centering

Apply readme logo centering

Trying to align image

Trying random shit

trying align right

add emoji

Large logo has higher priority

Change title hierarchy

Actually use a H1

Try again

try and organise badges

revert link back to point at master

* updated new take on VCR logo as SVG code

* Testing modern logo in docs

* Add sanitize for rendering SVG

* Switch to alabaster theme

* Update vcrpy logo (#503)

* Add credit for V4 logo changes.

* Add rewind and play animation

* Add svg into ReadTheDocs static assets so that it can be hosted so the animations work.

* Need to embedd the SVG for ReadTheDocs somewhere so I can get the link to later embed in the README

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Co-authored-by: Sean Bailey <sean@seanbailey.io>

vcr/stubs/__init__.py

@@ -1,9 +1,12 @@
 """Stubs for patching HTTP and HTTPS requests"""
 
 import logging
-import six
-from six.moves.http_client import HTTPConnection, HTTPSConnection, HTTPResponse
-from six import BytesIO
+from http.client import (
+    HTTPConnection,
+    HTTPSConnection,
+    HTTPResponse,
+)
+from io import BytesIO
 from vcr.request import Request
 from vcr.errors import CannotOverwriteExistingCassetteException
 from . import compat
@@ -11,7 +14,7 @@ from . import compat
 log = logging.getLogger(__name__)
 
 
-class VCRFakeSocket(object):
+class VCRFakeSocket:
     """
     A socket that doesn't do anything!
     Used when playing back cassettes, when there
@@ -143,7 +146,7 @@ class VCRHTTPResponse(HTTPResponse):
         return self._content.readable()
 
 
-class VCRConnection(object):
+class VCRConnection:
     # A reference to the cassette that's currently being patched in
     cassette = None
 
@@ -296,8 +299,7 @@ class VCRConnection(object):
             self.real_connection.sock = value
 
     def __init__(self, *args, **kwargs):
-        if six.PY3:
-            kwargs.pop("strict", None)  # apparently this is gone in py3
+        kwargs.pop("strict", None)  # apparently this is gone in py3
 
         # need to temporarily reset here because the real connection
         # inherits from the thing that we are mocking out.  Take out
@@ -328,7 +330,7 @@ class VCRConnection(object):
             # we're setting the real_connection itself for the first time
             pass
 
-        super(VCRConnection, self).__setattr__(name, value)
+        super().__setattr__(name, value)
 
     def __getattr__(self, name):
         """
@@ -340,7 +342,7 @@ class VCRConnection(object):
             # we're setting the real_connection itself for the first time
             return getattr(self.real_connection, name)
 
-        return super(VCRConnection, self).__getattr__(name)
+        return super().__getattr__(name)
 
 
 for k, v in HTTPConnection.__dict__.items():