Re: Setting up a python environment

[Roy Lemmon <roy@roylemmon.com>]

Thanks sirgazil. That is very helpful.

Yes, it might be that astropy has many dependencies.

I will take a look at that video and also get a better handle on packaging.

Cheers
Roy.


On Mon, 11 May 2020, 14:56 sirgazil, <sirgazil@zoho.com> wrote:

>  ---- On Mon, 11 May 2020 07:34:09 -0500 Roy Lemmon <roy@roylemmon.com>
> wrote ----
>  > Hi,
>  >
>  > I would like to ask about the general philosophy of setting up a python
>  > environment under guix.
>  >
>  > For other linux systems I have used pip to manage python packages and
>  > libraries.
>  >
>  > In guix is the idea that guix replaces pip for managing packages and
>  > libraries ?
>
> I think so, yes, ideally.
>
>  > So I would create a python-package for any missing python
>  > packages ?
>
> Yes.
>
>  > In the guix package lists, I can find many of the python
>  > libraries but there are a few missing that I would like, eg. astropy -
> an
>  > astronomy analysis library. So should I be creating a guix package for
> that
>  > rather than installing with pip ?
>
> That's the idea, yes: to have all Python packages available in Guix. That
> way, if your projects depend on Python packages and non-Python packages,
> you can specify all the requirements of your projects conveniently in a
> Guix manifest file (instead of having a requirements file for pip and
> another requirements file for some OS package manager, and possibly,
> another requirements file for another programmnig language used in a
> project).
>
> In practice, though, your projects could require many packages that are
> not yet in Guix. For example, astropy could depend on other packages that
> are not available, and those packages depend on other packages that are not
> available, and so on. To package them all would be a job in itself, and you
> would not have time to work on your project.  So, depending on your
> specific case, you might still need to use Python virtual environments and
> pip to get things done. For the latter you can use Python's venv, or
> poetry, or other tools that are already available in Guix for managing
> Python projects and environments.
>
> I recommend to watch the https://guix.gnu.org/videos/ for an introduction
> to packaging.
>
>
>
>
> ---
> https://sirgazil.bitbucket.io/
>
>
>
>