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Remove the __iter__ method from the UserDict class -- it can silently

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break old code (in extreme cases).  See SF bug #448153.

Add a new subclass IterableUserDict that has the __iter__ method.

Note that for new projects, unless backwards compatibility with
pre-2.2 Python is required, subclassing 'dictionary' is recommended;
UserDict might become deprecated.
This commit is contained in:
Guido van Rossum 2001-08-07 17:40:42 +00:00
parent 528b7eb0b0
commit 2050b65e84
1 changed files with 2 additions and 0 deletions
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2
Lib/UserDict.py
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@ -47,5 +47,7 @@ class UserDict:
return self.data.popitem()
def __contains__(self, key):
return key in self.data
class IterableUserDict(UserDict):
def __iter__(self):
return iter(self.data)