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[1.2.X] Fixed #12632 -- Improved performance of SortedDict. Thanks, Alex Gaynor.

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Backport of r13742 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@13743 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Justin Bronn 2010-09-11 02:30:39 +00:00
parent 260eff5684
commit 8829b7d956
1 changed files with 3 additions and 1 deletions
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4
django/utils/datastructures.py
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@ -99,9 +99,11 @@ class SortedDict(dict):
self.keyOrder = data.keys() self.keyOrder = data.keys()
else: else:
self.keyOrder = [] self.keyOrder = []
seen = set()
for key, value in data: for key, value in data:
if key not in self.keyOrder: if key not in seen:
self.keyOrder.append(key) self.keyOrder.append(key)
seen.add(key)
def __deepcopy__(self, memo): def __deepcopy__(self, memo):
return self.__class__([(key, deepcopy(value, memo)) return self.__class__([(key, deepcopy(value, memo))