Avoid needlessly reinstantiating Prepareds.

anntzer · anntzer · commit c1af1d6c2393 · 2021-01-10T19:27:06.000+01:00
diff --git a/importlib_metadata/__init__.py b/importlib_metadata/__init__.py
@@ -565,8 +565,9 @@ def find_distributions(self, context=DistributionFinder.Context()):
     @classmethod
     def _search_paths(cls, name, paths):
         """Find metadata directories in paths heuristically."""
+        prepared = Prepared(name)
         return itertools.chain.from_iterable(
-            path.search(Prepared(name)) for path in map(FastPath, paths)
+            path.search(prepared) for path in map(FastPath, paths)
         )
 
 

Original file line number	Diff line number	Diff line change
`@@ -565,8 +565,9 @@ def find_distributions(self, context=DistributionFinder.Context()):`
`565`	`565`	`@classmethod`
`566`	`566`	`def _search_paths(cls, name, paths):`
`567`	`567`	`"""Find metadata directories in paths heuristically."""`
	`568`	`+ prepared = Prepared(name)`
`568`	`569`	`return itertools.chain.from_iterable(`
`569`		`- path.search(Prepared(name)) for path in map(FastPath, paths)`
	`570`	`+ path.search(prepared) for path in map(FastPath, paths)`
`570`	`571`	`)`
`571`	`572`
`572`	`573`