reduce example generation batch size

HypothesisWorks · Nov 26, 2024 · d795120 · d795120
1 parent 4a79609
commit d795120
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diff --git a/hypothesis-python/RELEASE.rst b/hypothesis-python/RELEASE.rst
@@ -0,0 +1,3 @@
+RELEASE_TYPE: patch
+
+When a user requests an interactive input via ``strategy.example``, we generate and cache a batch of 100 inputs and return the first one. As this initial batch can be expensive for large strategies, this patch reduces the batch size to 10.
diff --git a/hypothesis-python/src/hypothesis/strategies/_internal/strategies.py b/hypothesis-python/src/hypothesis/strategies/_internal/strategies.py
@@ -335,7 +335,10 @@ def example(self) -> Ex:
         @given(self)
         @settings(
             database=None,
-            max_examples=100,
+            # generate only a few examples at a time to avoid slow interactivity
+            # for large strategies. The overhead of @given is very small relative
+            # to generation, so a small batch size is fine.
+            max_examples=10,
             deadline=None,
             verbosity=Verbosity.quiet,
             phases=(Phase.generate,),