Python : Some notes

(1) How to import a user's defined module 't1.py' in 't.py' ?

@t1.py
def watchout():
  print "Did you call me?"

@t.py
#! python2
import t1
t1.watchout()

=========Output===========
> t.py
Did you call me?
==========================

(2) Popen, same as C++

@c.cpp, compile it to c.exe
#include <stdio.h>
int main()
{
    printf("Hi Martin\nHi Megan\n");
    return 0;
}

@p.py
#! python2
import os
output = os.popen('c.exe')
print output.read()

=========Output===========
> p.py
Hi Martin
Hi Megan
==========================