How to use a Python package command inside a python file [duplicate]

Question

I would like to use a commandline tool (jupytext) inside a Python file. In a console, it works like this, which makes a .ipynb file out of .py

jupytext --to notebook notebook.py

But I don't want to do it for every file in a console. How can I execute this, when running a Python file itself (.py) in order to generate .ipynb automatically?

On a side note, I came across subprocess, which works fine with UNIX command in a python file, but I am not sure how to apply it for my case:

import subprocess
list_of_files = subprocess.run(['ls', '-la'], capture_output=True, text=True)
print(list_of_files.stdout)

Thanks a lot!

tripleee · Accepted Answer · 2022-06-30 10:34:46Z

1

Something like this?

import glob
import subprocess

for py in glob("*.py"):
    subprocess.run(
        ["jupytext", "--to", "notebook", py]
        check=True)

However, jupytext has a Python API too, so it's better to call that directly from Python for a more efficient solution, and more control over the process, too.

answered Jun 30, 2022 at 10:34

tripleee

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2 Comments

user7665853 Over a year ago

Associated question is useful but not exacly answer my question. So, I made an answer below. Many thanks for @tripleee. You code is not exactly working, but you made a right reference and I made it from there! Only a bit of workaround I found is that this library only works in Juypter notebook (thus it did not work in Python file).

user7665853 Over a year ago

So, my solution was

import glob import jupytext  for py in glob.glob('*.py'):     ntbk = jupytext.read(py)     py2 = py.replace('.py', '.ipynb')     jupytext.write(ntbk, py2)

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