如何将参数从服务器上的一个python脚本传递给另一个？

Question

I have 2 Python scripts on my server. I want to run the second one, SendMail.py , from MainScript.py , and I need to pass 2 arguments to it.

I want to call send_mail function in MainScript.py :

def send_mail(subject, body):
    # call SendMail.py with and pass the subject & body arguments

so it will run SendMail.py .

How can I run the other script while passing the arguments? Is it possible to do without importing the main function from SendMail.py into MainScript.py ? How do I grab the arguments in SendMail.py ?

Answer 1

You can use the subprocess module to run another python interpreter; sys.executable gives you a handy starting point:

import subprocess
import sys

subprocess.call([sys.executable, 'SendMail.py', subject, body])

but best practice would be to just import SendMail ; make sure you structure it to only run 'script-like' code with a if __name__ == '__main__' guard, then import the main 'sending' function from SendMail and re-use that:

def send_mail(subject, body):
    # main sending function


if __name__ == '__main__':
    # parse command line arguments into subject and body
    send_mail(subject, body)

then import SendMail and call SendMail.send_mail(subject, body) .

Answer 2

Use subprocess module:

import subprocess
args = [subject, body]
subprocess.call(['python','SendMail.py'] + args)

Inside SendMail.py use sys.argv :

import sys
subject, body = sys.argv[1:]