[Pewpewarrows]

We do something very similar, but like you said there are the occasional sneaky devils trying to download their own dependencies. Nine times out of ten it seems like it's some version of distribute that they insist on fetching.

The non-existant proxy trick seems useful, I'll have to try that out.

[supwiggles]

We run our own internal PyPi server. Makes it super easy to install our own packages over Pip, as well as ensure that dependancies are nice and clean.