Make zipp.compat.overlay.zipfile hashable.

Closes #126
jaraco · Sep 13, 2024 · a4c7961 · a4c7961
1 parent d66007a
commit a4c7961
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diff --git a/newsfragments/126.bugfix.rst b/newsfragments/126.bugfix.rst
@@ -0,0 +1 @@
+Make zipp.compat.overlay.zipfile hashable.
diff --git a/zipp/compat/overlay.py b/zipp/compat/overlay.py
@@ -11,6 +11,12 @@
 Relative imports are supported too.
 
 >>> from zipp.compat.overlay.zipfile import ZipInfo
+
+The ``zipfile`` object added to ``sys.modules`` needs to be
+hashable (#126).
+
+>>> hash(sys.modules['zipp.compat.overlay.zipfile']) > 0
+True
 """
 
 import importlib
@@ -20,7 +26,12 @@
 import zipp
 
 
-zipfile = types.SimpleNamespace(**vars(importlib.import_module('zipfile')))
+class HashableNamespace(types.SimpleNamespace):
+    def __hash__(self):
+        return hash(tuple(vars(self)))
+
+
+zipfile = HashableNamespace(**vars(importlib.import_module('zipfile')))
 zipfile.Path = zipp.Path
 zipfile._path = zipp