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bpo-1635741: Fix refleaks of encodings module by removing the encodings._aliases #21896

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bpo-1635741: Fix refleaks of encodings module by removing the encodings._aliases #21896

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c933b1a
remove encodings._aliases to search_function
shihai1991 Aug 15, 2020
4dd90d4
deleting the _aliases in encodings module
shihai1991 Aug 16, 2020
1dc9733
update news
shihai1991 Aug 16, 2020
9cc86b1
Fix typo
shihai1991 Aug 16, 2020
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deleting the _aliases in encodings module
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@shihai1991
shihai1991 committed Aug 16, 2020
commit 4dd90d4e48371c19ea89e5d242430d3220d34ebc
9 changes: 4 additions & 5 deletions Lib/encodings/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,6 @@ def normalize_encoding(encoding):

def search_function(encoding):

_aliases = aliases.aliases
# Cache lookup
entry = _cache.get(encoding, _unknown)
if entry is not _unknown:
Expand All @@ -83,8 +82,8 @@ def search_function(encoding):
# try in the encodings package, then at top-level.
#
norm_encoding = normalize_encoding(encoding)
aliased_encoding = _aliases.get(norm_encoding) or \
_aliases.get(norm_encoding.replace('.', '_'))
aliased_encoding = aliases.aliases.get(norm_encoding) or \
aliases.aliases.get(norm_encoding.replace('.', '_'))
if aliased_encoding is not None:
modnames = [aliased_encoding,
norm_encoding]
Expand Down Expand Up @@ -146,8 +145,8 @@ def search_function(encoding):
pass
else:
for alias in codecaliases:
if alias not in _aliases:
_aliases[alias] = modname
if alias not in aliases.aliases:
aliases.aliases[alias] = modname

# Return the registry entry
return entry
Expand Down
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