Is there a 'man' for python?

Question

I am wondering if there is a CLI like 'man.py' dedicated to Python?

ex,

man.py os.system
> system(command) -> exit_status
>
> Execute the command (a string) in a subshell.

Answer 1

The pydoc module provides it:

$ python -m pydoc os.system
Help on built-in function system in os:

os.system = system(...)
    system(command) -> exit_status

    Execute the command (a string) in a subshell.
$