[Numpy-discussion] script for building numpy from source in virtualenv and outside it

Ralf Gommers ralf.gommers at gmail.com
Mon Dec 26 16:29:30 EST 2016

On Tue, Dec 27, 2016 at 9:43 AM, Felipe Vieira <fmv1992 at gmail.com> wrote:

> Dear fellows,
> I'm struggling with a single script to build numpy from source in a
> virtual env. I want the same script to be able to be run with a normal env.
> So if ran from a normal env it should affect all users.
> If ran within a virtual env the installation should be constrained to that
> env.
> I tried setting script variables and other tricks but the script is always
> executed as a 'out of virtual env' user (I cannot make it aware that is
> running from a virtualenv), thus affecting my real working python. As the
> script activates other scripts I am not posting them for now (hoping that
> this is a simple issue).
> tl;dr: How can I install numpy from source and build it in a script which
> uses the virtual env instead of affecting the whole system?
> (And yes, I have looked for solutions on google but none of them worked.)

Sounds like you just need to run your script with the Python interpreter in
the virtualenv. There's nothing numpy-specific about this.

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