[Matplotlib-users] disabling downloads during build process

[Nat E. <nat...@gm...>]

A few of the users of our software want to compile the entire mess from
source using non-standard compilers and/or options.  We try to bundle all
dependencies with the package we distribute but the current version of
Matplotlib is attempting to download another half-dozen or so, which I'm
pretty sure is new behavior.  Because these users work at a company with
draconian network use policies, HTTP connections is completely blocked, and
the build fails when Matplotlib can't download these dependencies.

Two questions:

1) Is there a way to instruct Matplotlib not to attempt to download
anything?  I do not care if the build fails as a result of the missing
dependencies - at least it will be obvious what is missing, and it will
prevent undefined behavior on other systems.

2) Barring (1), is there a complete list of all required dependencies
somewhere?  The one on the website appears to be out of date, and it is not
clear what is truly required versus simply nice to have.

thanks,
Nat