problem of double import in python

Question

I remember to avoiding to confusing compiler for header, use

// in my include file
#define MYHEADER_H
// and in others code use:
#ifndef MYHEADER_H
#include blahblah

Unfortunately, I prevent to same error, double import to python, but I don't know how to solve, Please help.

Answer 1

You don't need to do anything, Python takes care of this for you.

During execution, a module is only loaded the first time it is imported. Every following import will notice that it has already been loaded and return a reference to the module instead.