Table of Contents
datetime
calendar
collections
heapq
bisect
array
sets
sets.BaseSet
sets.ImmutableSet
sets.Set
sets.ifilter
sets.ifilterfalse
sched
mutex
Queue
weakref
UserDict
UserList
UserString
types
new
copy
pprint
repr
BaseSet.
__contains__
Report whether an element is a member of a set.
(Called in response to the expression `element in self’.)