Python program calls another Python program __python

Python programs call another Python program, and there are probably several ways to invoke it:

Here are two Python programs, assuming a.py and b.py two programs, respectively.

1, in the a.py inside call b.py inside function, have the following two kinds of situation

(1) In the same file directory-this time can be directly with import B (Note No. py) then function call with B.function ()

(2) Not in the same directory-this time need to add b.py to the program path, with

"From sys import path"

Path.append (0,sys.path[0]+ ' \ file path ')

"Form. File path. b.py Import fuction

2, in the a.py inside directly call b.py all the program

Import OS

Os.popen (' Python path/b.py ')

Don't use Os.system here ()

The difference is here: http://bbs.chinaunix.net/thread-3777538-1-1.html