I've mentioned in this blog a few times recently the strides being made in rejuvenating the NetBeans support for Python, most recently in YouTube: Code Completion for Python in NetBeans IDE 8.0.2.
The newest development in that regard is new support for registering libraries on the classpath of Python projects (click to enlarge the image):
The above new feature isn't available in binary form yet, it's still being worked on. For the current state of the NetBeans IDE 8.0.2 plugin for Python, which includes quite some features already, including basic code completion, go here:
And, if you're lucky enough to be attending NetBeans Day in the Netherlands (12 February 2015), you'll find there'll be a session where the new Python features for NetBeans IDE 8.0.2 will be shown. Sign up for that event here: