fixes

Author: tybug

hypothesis-python/RELEASE.rst

@@ -1,3 +1,3 @@
 RELEASE_TYPE: patch
 
-Hypothesis collects coverage information during the :ref:`shrinking hypothesis.Phase.shrink` and :ref:`explain hypothesis.Phase.explain` phases in order to show a more informative error message. On 3.12+, this uses :mod:`sys.monitoring`. This patch improves the performance of coverage collection on 3.12+ by disabling events we don't need.
+Hypothesis collects coverage information during the ``shrink`` and ``explain`` :ref:`phases <phases>` in order to show a more informative error message. On 3.12+, this uses :mod:`sys.monitoring`. This patch improves the performance of coverage collection on 3.12+ by disabling events we don't need.

hypothesis-python/src/hypothesis/internal/scrutineer.py

@@ -87,7 +87,9 @@ def trace(self, frame, event, arg):
     def trace_line(self, code: types.CodeType, line_number: int) -> None:
         fname = code.co_filename
         if not should_trace_file(fname):
-            return sys.monitoring.DISABLE
+            # this function is only called on 3.12+, but we want to avoid an
+            # assertion to that effect for performance.
+            return sys.monitoring.DISABLE  # type: ignore
 
         current_location = (fname, line_number)
         self.branches.add((self._previous_location, current_location))