buildin api thats usable from python about virtualenv HOT 9 CLOSED

Seems to me this should be first built as an external tool (but not using
subprocess) , and if there are issues in pip or virtualenv that make that
difficult, we fix them. I think it's already pretty much all possible already,
using create_environment() and the RequirementSet API from pip. Once the
external tool has proved itself, then it could be considered to get merged
into pip or virtualenv.

Original Comment By: Anonymous

from virtualenv.

Oops, that was me ^^

Original Comment By: Carl Meyer

from virtualenv.

only creation is possible by some hacks, i don't see any way to handle
propperly invoking pip in the same way

Original Comment By: Ronny Pfannschmidt

from virtualenv.

Just for the record, an interesting project: http://github.com/thisismedium
/virtualenv-commands

Original Comment By: Jannis Leidel

from virtualenv.

Just to be clear, I don't think the APIs in pip are ideal for external use,
but I do think it's quite possible to use them externally. Just look at, say,
InstallCommand.run() and you can see how the RequirementSet class can be used
to build up a set of requirements for install, and then install them.

I think a lot of work could be done in pip to improve this, but it is possible
right now and I think the best way to improve it is to try with what's there.

Original Comment By: Carl Meyer

from virtualenv.

Oh, hm, I agree, an API for pip can lead to overengineering while a lot is
already there.

But an API for virtualenv would be useful to testing and automatic deployment
tools -- and I think this is where ronny is coming from.

Original Comment By: Jannis Leidel

from virtualenv.

Where is this going guys? Can I use create_environment() without fear?

from virtualenv.

https://github.com/sjkingo/virtualenv-api

Closely related to this issue.

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