__ge__ = __lt__
def __hash__(self):
"""
Hash based on value of elements.
>>> m = pmap({pbag([1, 2]): "it's here!"})
>>> m[pbag([2, 1])]
"it's here!"
>>> pbag([1, 1, 2]) in m
False
"""
return hash(self._counts)
Container.register(PBag)
Iterable.register(PBag)
Sized.register(PBag)
Hashable.register(PBag)
def b(*elements):
"""
Construct a persistent bag.
Takes an arbitrary number of arguments to insert into the new persistent
bag.
>>> b(1, 2, 3, 2)
pbag([1, 2, 2, 3])
"""
return PBag(result.persistent())
def __hash__(self):
"""
Hash based on value of elements.
>>> m = pmap({pbag([1, 2]): "it's here!"})
>>> m[pbag([2, 1])]
"it's here!"
>>> pbag([1, 1, 2]) in m
False
"""
return hash(self._counts)
Container.register(PBag)
Iterable.register(PBag)
Sized.register(PBag)
Hashable.register(PBag)
def b(*elements):
"""
Construct a persistent bag.
Takes an arbitrary number of arguments to insert into the new persistent
bag.
>>> b(1, 2, 3, 2)
pbag([1, 2, 2, 3])
"""
__author__ = 'veradocs-web'
print "Container Abstract Base Class"
from collections import Container
print(Container.__subclasshook__(list))
print(Container.__subclasshook__(dict))
print(Container.__subclasshook__(set))
print(Container.__subclasshook__(tuple))
import string
print(Container.__subclasshook__(string))
class WorldContainer(Container):
def __contains__(self, item):
return False
print(Container.__subclasshook__(WorldContainer))
print(WorldContainer().__contains__(4))
print "Hashable Abstract Base Class"
from collections import Hashable
print(Hashable.__subclasshook__(string))
class WorldCHashable(Hashable):
def __hash__(self, item):
return id(item)
print(Hashable.__subclasshook__(WorldCHashable))
print(WorldCHashable().__hash__(4))
