PR Summary

Alternative to#12557

Crossref#11850,

@anntzer, isn't this right? If the user has started the macosx event loop, they must have already imported macosx?

OTOH I am not sure how to make a Mac GUI to test that this test now does the right thing if the user has made a GUI. If someone has a easy GUI to test, that'd help...

Framework build:

From python prompt:

import matplotlib.pyplot as plt

Goes to MacOSX backend, bounces dock icon, but keeps focus on terminal

import matplotlib; matplotlib.use('qt5agg'); import matplotlib.pyplot as plt

No icon until a draw command is given. (Goes to QT5)

non-Framework

import matplotlib.pyplot as plt

falls back to qt5AGG

import matplotlib; matplotlib.use('macosx'); import matplotlib.pyplot as plt

Gives import error.

So.... I think this all works as expected. The windows connection gets made earlier than we'd like ( NSApp = [NSApplication sharedApplication]; inverify_framework()), but there is no way around that.

This also no longer uses the deprecated code.

PR Checklist

• Has Pytest style unit tests
• Code isFlake 8 compliant
• New features are documented, with examples if plot related
• Documentation is sphinx and numpydoc compliant
• Added an entry to doc/users/next_whats_new/ if major new feature (follow instructions in README.rst there)
• Documented in doc/api/api_changes.rst if API changed in a backward-incompatible way