CODEWITHSUNDEEP
pythonsetuptoolspackaging
Debilski
Debilski

Reputation: 67898

Calling a setuptools entry point from within the library

I have a setuptools-based Python (3.5) project with multiple scripts as entry points similar to the following:

entry_points={
    'console_scripts': [
        'main-prog=scripts.prog:main',
        'prog-viewer=scripts.prog_viewer:main'
    ]}

So there is supposed to be a main script, run as main-prog and an auxiliary script prog-viewer (which does some Tk stuff).

The problem is that I want to be able to run the prog-viewer in a Popen subprocess from main-prog (or rather form my library) without having to resort to manually figuring out the paths and then adapt to the different OS. Also, what do I do when my PATH contains a script with the same name that does not belong to my library? Can I tell my program to Popen(scripts.prog_viewer:main)?

Upvotes: 1

Views: 563

Answers (2)

Matthias Fripp
Matthias Fripp

Reputation: 18645

You could use the Multiprocessing module, which will also run your code as a subprocess. e.g.,

from multiprocessing import Process
from scripts.prog import main
# or 
# from pkg_resources import load_entry_point
# main = load_entry_point('your-package', 'console_scripts', 'main_prog')

p = Process(main)
p.start()
p.join()

Upvotes: 0

miindlek
miindlek

Reputation: 3563

You could run a python command with Popen, for example:

Popen('python -c "from scripts.prog import main; main()"', shell=True)

Upvotes: 2

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