停止pydoc运行我的Python程序

Question

Following on " Windows 7 - pydoc from cmd ", I have the following problem. I prepared a simple, docstring-documented hello.py "hello world" script:

""" This module prints Hello, world
    More documentation.
"""
print("Hello, world")

and saved it in C:\\Python34\\lib.

Then using Window's command-line, I changed the directory to C:\\Python34\\lib, and ran

pydoc <full path to hello.py>

My output is:

Hello, world
Help on module hello:

NAME
    hello

DESCRIPTION
    This module prints Hello, world
    More documentation.

FILE
    c:\python34\lib\hello.py

It's great that it printed the documentation, but first it ran the program.

How do I get it to NOT run the program, just print the documentation?

Answer 1

pydoc imports the module to be documented. So statements there are executed.

If you can modify the code, guard the print line with if __name__ == "__main__" so the line is executed only when it is executed directly, but not when it is imported:

""" This module prints Hello, world
    More documentation.
"""
if __name__ == "__main__":
    print("Hello, world")