scikit-image/scikit-image — pull request #1069 by jni (2014-07-15 08:47:57+00:00)
Title: Document NetworkX dependency in DEPENDS.txt

Addresses #1067.

Here is @JDWarner's successful argument on the mailing list for making this a required rather than optional dependency:

https://groups.google.com/d/msg/scikit-image/jjfChxzJIDQ/JDyZ_akHmSMJ