wesm commented on a change in pull request #7112:
URL: https://github.com/apache/arrow/pull/7112#discussion_r420738609
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File path: python/pyarrow/types.pxi
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@@ -817,6 +817,12 @@ def register_extension_type(ext_type):
_python_extension_types_registry.append(_type)
+cdef _unregister_extension_type(bytes type_name):
+ # ARROW-8684: Due to a Cython (?) bug we cannot call "compat.tobytes"
Review comment:
No, for some reason calling tobytes from within the atexit handler
triggers the bug
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