finding _collections in python source

Question

I wanted to have a look at the python deque class. When I checked the source code , I found the following at line 10

 from _collections import deque, default         


        

Answer 1

These days the CPython source code (including built-in modules) is hosted on Github, so you can find the collections module source code here.

For the collections.abc module, see here.

Answer 2

_collections is a private implementation of a class according to this answer: "Private" (implementation) class in Python.

Being private, I don't think that you will be able to access its Python source but you can check out the C implementation here.

Answer 3

_collections is builtin extension module.

You can find source for _collection module here.

Setup.dist contains mapping between builtin extension module name to source file.