[IPython-dev] Installing kernels and libs under a virtual env

[Aron Ahmadia]

Any reason in particular you're not using the system prefix to decide where
to install things?  That hardcode looks like it's going to cause all sorts
of misery in the future.

It seems like you could reasonably construct locations from
os.path.join(sys.prefix, 'share', 'jupyter', 'kernels') and avoid the
hardcode.

A

On Tue, Dec 30, 2014 at 2:28 PM, Fernando Perez <fperez.net at gmail.com>
wrote:

> Hi Doug,
>
> On Tue, Dec 30, 2014 at 9:57 AM, Doug Blank <doug.blank at gmail.com> wrote:
>
>> I think that if "python setup.py install --user" under a venv went to the
>> virtual env's local, then everything would be fine. But maybe I'm doing
>> something wrong (need to use pip?).
>
>
> The issue is that the list of targets is hardcoded here:
>
>
> https://github.com/ipython/ipython/blob/master/IPython/kernel/kernelspec.py#L21
>
> that code isn't currently aware in any way of virtualenvs.
>
> I'm fuzzy on the details of how we ended up deciding we'd interact with
> venvs, other than saying that we'll try to bake as little knowledge of
> 'environment managers' (venv, conda, etc) directly into our kernel
> installation tools directly.  That discussion has lots of subtly
> interacting moving parts, and I'm afraid to say something misleading right
> now.
>
> Min and Thomas were deep in those details, and I'd wait for further
> feedback from them (or anyone else who remembers well).  But in the
> meantime, you may want to play with that code in a local copy: you may find
> a minimally intrusive improvement for venv support that could be a good
> solution for a PR.
>
> Cheers,
>
> f
>
>
>
> --
> Fernando Perez (@fperez_org; http://fperez.org)
> fperez.net-at-gmail: mailing lists only (I ignore this when swamped!)
> fernando.perez-at-berkeley: contact me here for any direct mail
>
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