namedtuple vs NamedTuple in Python - Stack Overflow
The type generated by subclassing typing.NamedTuple is equivalent to a collections.namedtuple, but with __annotations__, _field_types and _field_defaults attributes added. The generated code will …
Newest 'python-collections' Questions - Stack Overflow
May 23, 2025 · Python 3.9 includes PEP 585 and deprecates many of the types in the typing module in favor of the ones in collections.abc, now that they support __class_getitem__.
python - What is isinstance with a dictionary and abc.Mapping from ...
Feb 29, 2016 · The collections.abc module provides several abstract base classes that can be used to generically describe the various kinds of data structures in Python. In your example, you test if an …
python - collections.Iterable vs typing.Iterable in type annotation and ...
Oct 16, 2018 · Due to PEP 585 - Type Hinting Generics In Standard Collections, Python's standard library container types are also able to accept a generic argument for type annotations. This includes …
python - cannot import name 'Sequence' from 'collections' - Stack …
Jul 22, 2024 · The pathlib package is willing to import Sequence from collections instead of collections.abc; this is deprecared since Python 3.3, and not working anymore since Pyhton 3.10.
python - Difference between collections.abc.Sequence and typing ...
Jan 30, 2023 · In older versions of python, typing.Sequence is a generic version of collections.abc.Sequence, used for typing. In recent versions, both are generic and typing.Sequence …
python - cannot import name 'MutableMapping' from 'collections'
Jan 26, 2022 · If you have this issue a simple method to patch the issue for 3.10 is to port back the library into collections instead of bothering about changing third party code, or your own code to be …
iteration - Pythonic way to iterate over a collections.Counter ...
In Python 2.7, I want to iterate over a collections.Counter instance in descending count order.
python - queue.Queue vs. collections.deque - Stack Overflow
I need a queue which multiple threads can put stuff into, and multiple threads may read from. Python has at least two queue classes, queue.Queue and collections.deque, with the former seemingly usi...
Accessing items in an collections.OrderedDict by index
Dec 16, 2018 · 12 This community wiki attempts to collect existing answers. Python 2.7 In python 2, the keys(), values(), and items() functions of OrderedDict return lists. Using values as an example, the …