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Raymond Hettinger 2014-05-26 00:14:14 -07:00
commit aa92d342f1
2 changed files with 177 additions and 6 deletions
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23
Lib/_collections_abc.py
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@ -207,12 +207,17 @@ class Set(Sized, Iterable, Container):
def __gt__(self, other):
if not isinstance(other, Set):
return NotImplemented
return other.__lt__(self)
return len(self) > len(other) and self.__ge__(other)
def __ge__(self, other):
if not isinstance(other, Set):
return NotImplemented
return other.__le__(self)
if len(self) < len(other):
return False
for elem in other:
if elem not in self:
return False
return True
def __eq__(self, other):
if not isinstance(other, Set):
@ -236,6 +241,8 @@ class Set(Sized, Iterable, Container):
return NotImplemented
return self._from_iterable(value for value in other if value in self)
__rand__ = __and__
def isdisjoint(self, other):
'Return True if two sets have a null intersection.'
for value in other:
@ -249,6 +256,8 @@ class Set(Sized, Iterable, Container):
chain = (e for s in (self, other) for e in s)
return self._from_iterable(chain)
__ror__ = __or__
def __sub__(self, other):
if not isinstance(other, Set):
if not isinstance(other, Iterable):
@ -257,6 +266,14 @@ class Set(Sized, Iterable, Container):
return self._from_iterable(value for value in self
if value not in other)
def __rsub__(self, other):
if not isinstance(other, Set):
if not isinstance(other, Iterable):
return NotImplemented
other = self._from_iterable(other)
return self._from_iterable(value for value in other
if value not in self)
def __xor__(self, other):
if not isinstance(other, Set):
if not isinstance(other, Iterable):
@ -264,6 +281,8 @@ class Set(Sized, Iterable, Container):
other = self._from_iterable(other)
return (self - other) | (other - self)
__rxor__ = __xor__
def _hash(self):
"""Compute the hash value of a set.