Where can i find documentation for python built-in modules?

Question

Python has some built-in modules eg _random, _ast, _collections, _md5, _functools and more.

In all of python implementations standard libraries are built using this built-in modules. But I can't find any documentation for this modules. Is there any documentation?

full list of this modules:

import sys
sys.builtin_module_names

Answer 1

If you are using Python 3.x, here: https://docs.python.org/3/py-modindex.html

If you are using Python 2.7, here: https://docs.python.org/2.7/py-modindex.html

It is called the Python Module Index. You can click on a specific module to look at its documentation.

I was wrong. These modules are not built-in. These links are perfectly fine if you want the modules in the standard library, but that is not what OP was asking for.