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extraduder_ire2 years ago

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.

tarxvfguappa2 years ago

I had never heard of that, reading up on it now. Thanks for posting!

lawtalkinghumantarxvf2 years ago

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.

https://pex.readthedocs.io/en/latest/

diarrhea2 years ago

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?

https://peps.python.org/pep-0722/

jefferphdiarrhea2 years ago

Looks like https://peps.python.org/pep-0723/ was accepted instead. See discussion here: https://discuss.python.org/t/pep-722-723-decision/36763

Flimmjefferph2 years ago

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])

Flimm2 years ago

A 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
  ...

Then you could run the script like this:

  pipx run file:example.py

This would install the dependencies in a temporary virtual environment, and run the script in that virtual environment.

[1] https://github.com/pypa/pipx/pull/916

networkedFlimm2 years ago

There is also fades (https://github.com/PyAr/fades) and pip-run (https://github.com/jaraco/pip-run). Debian and Ubuntu package fades.

greensh2 years ago

nix can do something similar via nix shell https://nixos.org/manual/nix/stable/command-ref/nix-shell.html#use-as-a--interpreter

Kim_Bruninggreensh2 years ago

I have used nix shell like this before; super handy!

deivid2 years ago

Why not use something like shiv[0]? You can bundle all your dependencies into one file and distribute that.

[0] https://pypi.org/project/shiv/