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Python interface to your NPM and package.json.

Project description

Python interface to your NPM and package.json.

Further documentation is available on


PyNPM is on PyPI so all you need is:

$ pip install pynpm


First point PyNPM to your package.json:

from pynpm import NPMPackage
pkg = NPMPackage('path/to/package.json')

Now you can run e.g. npm install from within Python:


Arguments are also support so you can run e.g. npm run build --report:

pkg.run_script('build', '--report')

Want to use yarn instead?

from pynpm import YarnPackage
pkg = YarnPackage('path/to/package.json')

By default NPM output is piped through and the function call will wait for NPM to finish. If you want to silence the output or interact with process pass wait=False and you will get a subprocess.POpen object back:

p = pkg.install(wait=False)

By default you can run the following NPM commands:

  • build
  • init
  • install
  • link
  • run-script
  • start
  • stop
  • test

You can also run other NPM commands or restrict which commands you can run:

pkg = NPMPackage('path/to/package.json', commands=['install'])


Version 0.1.0 (released 2017-05-12)

  • Initial public release.

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