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Gave issubet() and issuperset() major speed boosts. That's it for now! 

Someone else may want to tackle the mutating operations similarly.
This commit is contained in:
Tim Peters 2002-08-25 20:12:19 +00:00
parent b8940393e9
commit cd06eeb20c
1 changed files with 4 additions and 2 deletions
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6
Lib/sets.py
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@ -259,8 +259,9 @@ class BaseSet(object):
self._binary_sanity_check(other) self._binary_sanity_check(other)
if len(self) > len(other): # Fast check for obvious cases if len(self) > len(other): # Fast check for obvious cases
return False return False
otherdata = other._data
for elt in self: for elt in self:
if elt not in other: if elt not in otherdata:
return False return False
return True return True
@ -269,8 +270,9 @@ class BaseSet(object):
self._binary_sanity_check(other) self._binary_sanity_check(other)
if len(self) < len(other): # Fast check for obvious cases if len(self) < len(other): # Fast check for obvious cases
return False return False
selfdata = self._data
for elt in other: for elt in other:
if elt not in self: if elt not in selfdata:
return False return False
return True return True