tree c0de1b5ada19641b3bb8ce14ba84f8b5777b993a
parent 3d5c9e2c6710ad9bd93651494b95c6fb1f81da89
author Zachary Ware <zachary.ware@gmail.com> 1399045867 -0500
committer Zachary Ware <zachary.ware@gmail.com> 1399045867 -0500

Issue #18604: Consolidated checks for GUI availability.

test_support._is_gui_available is now defined the same way on every
platform, and now includes the Windows-specific check that had been in the
Windows version of _is_gui_available and the OSX-specific check that was
in tkinter.test.support.check_tk_availability.  Also, every platform
checks whether Tk can be instantiated (if the platform-specific checks
passed).