Python

In Python UserDict, UserList and UserString are classes in the collections module. These classes provide a way to create custom dictionary, list, and string-like objects by inheriting from them. These…

An OrderedDict in Python is a dictionary class from the collections module. It is a subclass of the dict class. This is used to maintain the order of key-value pairs,…

In Python, defaultdict is a subclass of the built-in dict class. defaultdict returns a new dictionary-like object. It provides a default value for a nonexistent key automatically, without raising a…

namedtuple collection in Python is part of the collections module. it provides a simple way to create lightweight object types similar to tuples, but with named fields. Named fields in…

In Python, deque is a class from collections module. deque is short for double-ended queue. It provides an alternative and optimized way to work with queue and stack. deque has…