如何同时运行多个python命令？

Question

I've read that subprocess should be used but all the examples i've seen on it shows that it runs only command-line commands. I want my program to run a python command along with another command. The command i want to run is to send an email to a user while a user plays a game i created. i have to have the python commands run at the same time because without doing so nothing else in the game can happen before the email is finished sending so it lags the game. Please help and any input is appreciated.

Answer 1

听起来您正在寻找线程，这是一个相对较深的主题，但这应该可以帮助您入门： http : //www.devshed.com/c/a/Python/Basic-Threading-in-Python/

Answer 2

Threading is talked about in another answer, but you can get basically what you want by using subprocess's Popen command: http://docs.python.org/library/subprocess.html#subprocess.Popen

What you'll basically want is this (assuming proc is initialized somewhere in the game loop):

#...game code here...

args = [command_name_as_string, arg_1_to_command, arg_2_to_command, etc.]
proc = subprocess.Popen(args)

Then, you'll go back to your game loop. At some point in the game loop, you can put in something like this:

if proc:
    proc.poll()
    if proc.returncode:
        #...do whatever you want with the process output here, which can 
        # be accessed with proc.stdin, proc.stderr, and so on...
    proc = None