How python calls c or c++ library

Python can call the C/C++ library in the following ways:

• Using the ctypes module
  This is a module built into Python that allows you to directly call C functions defined in .h header files.

Example:

import ctypes
libc = ctypes.CDLL('libc.so.6')  # Load the C library
libc.printf()  # Call a C function

• Using Cython
  Cython is an open source Python and C hybrid language. You can compile the Cython source code into a C extension, and then load and use it in Python.
  Example:

# test.pyx
cdef extern from "header.h"