Re: How can I replace Python venv and pip with Guix?

[Zelphir Kaltstahl <zelphirkaltstahl@gmail.com>]

Hi,

I know you asked something else, but want to mention this: You could use
Poetry to make reproducible environments for Python. Only yesterday I
have been through the process of building Python 3.8.1 on Trisquel and
getting Poetry installed through Pip.

Also if it is any help, I can share my scripts for building Python with
everyone. I am planning to upload them to some repo later anyway.

Regards,
Zelphir

On 2/3/20 6:00 PM, help-guix-request@gnu.org wrote:
> Hi,
>
> I'm currently using two package managers when working on my projects written in Python. I use Guix to install Python, and Python pip to install Python packages in project environments created with Python venv. So, for working on a specific project, I do the following:
>
>
> #+BEGIN_EXAMPLE
> # Create an environment (one-time operation)
> $ python3 -m venv ~/.virtualenvs/my-project
>
> # Activate the environment
> $ source ~/.virtualenvs/my-project/bin/activate
> (my-project) $
>
> # Install packages in the environment
> (my-project) $ pip install -r packages.txt
>
> # Deactivate the environment (Ctrl+D)
> $ deactivate
> #+END_EXAMPLE
>
>
> Emacs Elpy detects the virtual environments I create in this way, so I can activate and deactivate them from Emacs with an easy to use interface and have code completion that depends on the packages available in the active environment.
>
> I'd like to use Guix and its environments to replace this functionality and to make my development environments easier to reproduce, but I don't understand how to that exactly.
>
> So far I have tried the "guix environment" command as follows, trying to create a persistent environment I can activate/deactivate whenever I want:
>
> #+BEGIN_EXAMPLE
> $ guix environment --pure --manifest=guix.scm --root=/path/to/my-guix-envs/my-project
> #+END_EXAMPLE
>
> After running that command, I can see the prompt adds a "[env]" label indicating that I'm in the environment, and I can use the packages specified in the manifest file. But
>
> • How could one make the prompt add "[my-project]" instead of the generic "[env]"?
> • Once I deactivate this environment (Ctrl+D), how can I activate it again?
>
>
> Thanks,
>
>
>
> ---
> https://sirgazil.bitbucket.io/