From 6b2fc182c30d62e138b5fb048c2d28bbb4c9e7de Mon Sep 17 00:00:00 2001
From: Jair Henrique <jair.henrique@gmail.com>
Date: Mon, 26 Jun 2023 15:57:17 -0300
Subject: [PATCH] Improve string format

---
 tests/unit/test_errors.py  |  7 ++++---
 vcr/errors.py              | 14 +++++++-------
 vcr/stubs/tornado_stubs.py |  4 ++--
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/tests/unit/test_errors.py b/tests/unit/test_errors.py
index 9d331ad..3ecd85b 100644
--- a/tests/unit/test_errors.py
+++ b/tests/unit/test_errors.py
@@ -64,8 +64,9 @@ def test_CannotOverwriteExistingCassetteException_get_message(
     failed_request = "request"
     exception_message = errors.CannotOverwriteExistingCassetteException._get_message(cassette, "request")
     expected = (
-        "Can't overwrite existing cassette ({!r}) in your current record mode ({!r}).\n"
-        "No match for the request ({!r}) was found.\n"
-        "{}".format(cassette._path, cassette.record_mode, failed_request, expected_message)
+        f"Can't overwrite existing cassette ({cassette._path!r}) "
+        f"in your current record mode ({cassette.record_mode!r}).\n"
+        f"No match for the request ({failed_request!r}) was found.\n"
+        f"{expected_message}"
     )
     assert exception_message == expected
diff --git a/vcr/errors.py b/vcr/errors.py
index 67e2dbf..4072e5f 100644
--- a/vcr/errors.py
+++ b/vcr/errors.py
@@ -13,9 +13,9 @@ class CannotOverwriteExistingCassetteException(Exception):
         best_matches = cassette.find_requests_with_most_matches(failed_request)
         if best_matches:
             # Build a comprehensible message to put in the exception.
-            best_matches_msg = "Found {} similar requests with {} different matcher(s) :\n".format(
-                len(best_matches),
-                len(best_matches[0][2]),
+            best_matches_msg = (
+                f"Found {len(best_matches)} similar requests "
+                f"with {len(best_matches[0][2])} different matcher(s) :\n"
             )
 
             for idx, best_match in enumerate(best_matches, start=1):
@@ -30,10 +30,10 @@ class CannotOverwriteExistingCassetteException(Exception):
         else:
             best_matches_msg = "No similar requests, that have not been played, found."
         return (
-            "Can't overwrite existing cassette ({!r}) in "
-            "your current record mode ({!r}).\n"
-            "No match for the request ({!r}) was found.\n"
-            "{}".format(cassette._path, cassette.record_mode, failed_request, best_matches_msg)
+            f"Can't overwrite existing cassette ({cassette._path!r}) in "
+            f"your current record mode ({cassette.record_mode!r}).\n"
+            f"No match for the request ({failed_request!r}) was found.\n"
+            f"{best_matches_msg}"
         )
 
 
diff --git a/vcr/stubs/tornado_stubs.py b/vcr/stubs/tornado_stubs.py
index fbd2e6a..7f61da7 100644
--- a/vcr/stubs/tornado_stubs.py
+++ b/vcr/stubs/tornado_stubs.py
@@ -29,9 +29,9 @@ def vcr_fetch_impl(cassette, real_fetch_impl):
                 request,
                 599,
                 error=Exception(
-                    "The request (%s) uses AsyncHTTPClient functionality "
+                    f"The request ({request!r}) uses AsyncHTTPClient functionality "
                     "that is not yet supported by VCR.py. Please make the "
-                    "request outside a VCR.py context." % repr(request),
+                    "request outside a VCR.py context.",
                 ),
                 request_time=self.io_loop.time() - request.start_time,
             )