https://github.com/python/cpython/commit/03f7aaf953f00bf2953c21a057d8e6e88db659c8
commit: 03f7aaf953f00bf2953c21a057d8e6e88db659c8
branch: main
author: Raymond Hettinger <[email protected]>
committer: rhettinger <[email protected]>
date: 2024-04-03T10:08:18-05:00
summary:
gh-117215 Make the fromskey() signature match dict.fromkeys(). (gh-117493)
files:
M Lib/collections/__init__.py
diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py
index 2a35989ee25a5e..d06d84cbdfcc36 100644
--- a/Lib/collections/__init__.py
+++ b/Lib/collections/__init__.py
@@ -1038,9 +1038,9 @@ def __repr__(self):
return f'{self.__class__.__name__}({", ".join(map(repr, self.maps))})'
@classmethod
- def fromkeys(cls, iterable, *args):
- 'Create a ChainMap with a single dict created from the iterable.'
- return cls(dict.fromkeys(iterable, *args))
+ def fromkeys(cls, iterable, value=None, /):
+ 'Create a new ChainMap with keys from iterable and values set to
value.'
+ return cls(dict.fromkeys(iterable, value))
def copy(self):
'New ChainMap or subclass with a new copy of maps[0] and refs to
maps[1:]'
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