Some third-party projects, such as matplotlib and PIL/Pillow,
depended on being able to build with Tcl and Tk frameworks in
/Library/Frameworks.  They were unable to build with the built-in
Tcl/Tk and/or execute correctly.

Some third-party projects, such as matplotlib and PIL/Pillow,
depended on being able to build with Tcl and Tk frameworks in
/Library/Frameworks.  They were unable to build with the built-in
Tcl/Tk and/or execute correctly.

Patch by Serhiy Storchaka and Vajrasky Kok.

event of a permission error on Windows and to properly report other
skip conditions.

under test.regrtest on 2.7.

This should stop the Windows buildbots from hanging on test_ttk_guionly.

integers instead of a string.  Based on patch by Guilherme Polo.

Issue #19286: Adding test demonstrating the failure when a directory is found in the package_data globs.

loaded from .py[co] files.

Issue #19455: Corrected inaccuracies in documentation and corrected some incorrect cross-references.