The collections.UserString class in Python’s collections module provides a wrapper around string objects. It is a useful base class for creating custom string-like objects by subclassing and modifying its behavior.
The collections.UserList class in Python’s collections module provides a wrapper around list objects. It is a useful base class for creating custom list-like objects by subclassing and modifying its behavior.
The collections.UserDict class in Python’s collections module acts as a wrapper around dictionary objects. It is a useful base class for creating custom dictionary-like objects by subclassing and modifying its behavior.
The collections.defaultdict class in Python’s collections module is a subclass of the built-in dict class. It overrides one method to provide a default value for a nonexistent key, simplifying the process of dealing with missing keys in a dictionary.
The collections.OrderedDict class in Python’s collections module provides a dictionary subclass that remembers the order in which items were inserted. This is useful when the order of elements is important for your application.
The collections.Counter class in Python’s collections module provides a dictionary subclass designed for counting hashable objects. It is used for counting items in a collection and provides additional functionality to easily manipulate and retrieve counts.
The collections.ChainMap class in Python’s collections module provides a way to manage multiple dictionaries as a single view. It allows you to search through a sequence of dictionaries as if they were one, making it easier to work with multiple contexts or scopes.
The collections.deque class in Python’s collections module provides a double-ended queue with efficient appends and pops from both ends. It is a useful data structure for tasks that require fast access and modification of elements at both ends of the queue.
The collections.namedtuple function in Python’s collections module is a factory function that creates tuple subclasses with named fields. This function is useful for creating simple classes to bundle together a few attributes and provide named access to them.