Matplotlib strives to produce publication quality 2D graphics for interactive graphing, scientific publishing, user interface development and web application servers targeting multiple user interfaces and hardcopy output formats. The 'pylab' mode of ipython uses matplotlib to emulate matlab graphics. This is the Python 3 version of matplotlib and can coexist with SBo's matplotlib package. OPTIONAL DEPENDENCIES: python3-PyQt5, wxPython4, python3-pytest, ffmpeg, avconv, Inkscape NOTES: If you want to enable the optional subpackages tests and toolkits_tests you need to set the variable ENABLE_TESTS to "yes" when executing the SlackBuild and make sure that python3-pytest, ffmpeg, avconv and Inkscape are already installed. Besides ffmpeg/avconv are also needed if you wish better support of animation output formats. The pytz dependency must be compiled with Python 3 support.