[Already__Taken]

It adds yet another dependency just to get a project to initialize though which is a small negative. I guess npm needs python anyway for node-gyp but then you have to stick to python 2.

[noir_lord]

I deploy dev environments via vagrant/ansible so that's a slight upfront cost but something I never have to touch.

Using virtualenvs I can also keep one project isolated from another in terms of jumping around the filesystem.

The convenience is a major win and since I use python for everything other than the web framework which is PHP it actually ties together nicely.

Unconventional but it works really well.