Update src/_pytest/unittest.py

Author: nicoddemus

src/_pytest/unittest.py

@@ -405,8 +405,8 @@ class TwistedVersion(Enum):
 
 
 def _get_twisted_version() -> TwistedVersion:
-    # Check `"twisted.trial.unittest` is in sys.modules to ensure that Twisted is installed
-    # being used to run the test suite.
+    # We need to check if "twisted.trial.unittest" is specifically present in sys.modules. 
+    # This is because we intend to integrate with Trial only when it's actively running the test suite, but not needed when only other Twisted components are in use.
     if "twisted.trial.unittest" not in sys.modules:
         return TwistedVersion.NotInstalled