Pip.wtf: Inline dependencies for small Python scripts
pip.wtfA development version of pipx supports a feature that address this pain point. See pull request #916 [1]
In your script example.py, you would specify your dependencies in a special comment like this:
# Requirements:
# requests
import requests
...
pipx run file:example.py
There is also fades (https://github.com/PyAr/fades) and pip-run (https://github.com/jaraco/pip-run). Debian and Ubuntu package fades.
Why not use something like shiv[0]? You can bundle all your dependencies into one file and distribute that.
I was going to mention that an official solution to this problem is around the corner, but the corresponding PEP has been rejected. Anyone know what happened there?
Looks like https://peps.python.org/pep-0723/ was accepted instead. See discussion here: https://discuss.python.org/t/pep-722-723-decision/36763
Fascinating! It looks like PEP 723 (the one that was accepted provisionally) will allow you to embed a comment in your script that looks like this, to specify dependencies on request and rich:
# /// pyproject # [run] # requires-python = ">=3.11" # dependencies = [ # "requests<3", # "rich", # ] # /// import requests from rich.pretty import pprint resp = requests.get("https://peps.python.org/api/peps.json") data = resp.json() pprint([(k, v["title"]) for k, v in data.items()][:10])
nix can do something similar via nix shell https://nixos.org/manual/nix/stable/command-ref/nix-shell.ht...
I have used nix shell like this before; super handy!
Cool. I'm surprised this didn't exist earlier.
Now someone upload it to pypi for even more hilarity.
There was (and is) no reason for it to exist since python supports running .zip files that contain all the dependencies.
I had never heard of that, reading up on it now. Thanks for posting!
pex is a build tool built on the top of the zip trick. A pex file doesn't contain a bundled interpreter, but it zips up the entire virtualenv. Also no Windows support.