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simultaneous - Run another python file from a python program?

I want a peice of code which would run another python file. I would like to be able to run the 2 files simultaneously.

print('Hello World') 

run ('this file') #obviously not real code

print('Hello World Agian') #continue with program

i really need the programs to run simultaneously. I dont mind downloading a library to do it.

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1 Answer

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Update from this comment:

You can try sending a bash command using this code:

import subprocess
process = subprocess.Popen("python script1.py & python script2.py &".split(), stdout=subprocess.PIPE)
output, error = process.communicate()

Bash command from this question, code to run the bash from this question. You need 3 programs: the first to run this code, the second (script1.py) and third (script2.py) will be run by the program.


I made a class for importing files, although it might be overkill for what you want. You could use just a

import filename

, but if you need to import files with user-inputted names and reimport some of them, you can use this class below:

from importlib import __import__, reload
from sys import modules

class Importer:
    libname = ""
    import_count = 0
    module = None

    def __init__(self, name):
        self.libname = name
        self.import_count = 0

    def importm(self):
        if self.libname not in modules:
            self.module = __import__(self.libname)
            self.module = reload(self.module)
        self.import_count += 1

# test out Importer

importer = Importer("mymodule")

""" mymodule.py



importer.importm() # prints Hello
importer.importm() # prints Hello
importer.importm() # prints Hello (again)


I made this class some time ago for a question that was deleted (10k to view my answer).

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