How to run another python program without holding up original?

2018-06-04 01:59:17

This question already has an answer here:

Calling an external command in Python 50 answers

使用subprocess

import subprocess

#code
prog = subprocess.Popen(['python', filename, args])
#more code

如果其他python程序是可导入的，并且需要的功能可以通过函数调用，那么最好使用多处理而不是subprocess ，因为参数可以作为Python对象传递，而不是通过字符串传递：

import somescript
import multiprocessing as mp

proc = mp.Process(target=somescript.main, args=...)
proc.start()

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