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| -rw-r--r-- | Lib/collections/__init__.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py index e8312a9..5b47e60 100644 --- a/Lib/collections/__init__.py +++ b/Lib/collections/__init__.py @@ -1,3 +1,19 @@ +'''This module implements specialized container datatypes providing +alternatives to Python’s general purpose built-in containers, dict, +list, set, and tuple. + +* namedtuple factory function for creating tuple subclasses with named fields +* deque list-like container with fast appends and pops on either end +* ChainMap dict-like class for creating a single view of multiple mappings +* Counter dict subclass for counting hashable objects +* OrderedDict dict subclass that remembers the order entries were added +* defaultdict dict subclass that calls a factory function to supply missing values +* UserDict wrapper around dictionary objects for easier dict subclassing +* UserList wrapper around list objects for easier list subclassing +* UserString wrapper around string objects for easier string subclassing + +''' + __all__ = ['deque', 'defaultdict', 'namedtuple', 'UserDict', 'UserList', 'UserString', 'Counter', 'OrderedDict', 'ChainMap'] |