Based on patch by Martin Panter.

tkinter.Font.

The new private C function makes no permanent changes to the environment
and is #ifdef'd out on non-Windows platforms.

Patch by Martin Panter.

Tkinter's getdouble() now supports any numbers (in particular int).

The concept of .pyo files no longer exists. Now .pyc files have an
optional `opt-` tag which specifies if any extra optimizations beyond
the peepholer were applied.

returns bool.  tkinter.BooleanVar now validates input values (accepted bool,
int, str, and Tcl_Obj).  tkinter.BooleanVar.get() now always returns bool.

This gets rid of  Tcl warnings when they are handled later when the root is
already destroyed.

Tweak docstrigs and comments in affected functions in idlelib.configHandler.

when it is run with pythonw.exe.

Documented that Tk.report_callback_exception() is purposed to be overriden in
applications.

First letter no longer is stripped from the "status" key in
the result of Treeview.heading().

window is created for every test class.

Fixed Tkinter images copying operations in NoDefaultRoot mode.

Tcl command names generated for "after" callbacks now contains a name of
original function.

In particular this allows to initialize images from binary data.

Tkinter methods.

from 6ae34a948cb4.

the argument is not specified.  Scrollbar.set() now always accepts only 2
arguments.  Added tests for Scrollbar.activate() and Scrollbar.set().

This changeset also includes cleanup allowed by this behavior change.

bbox(), curselection() and get().

Based on patch by Guilherme Polo.

PanedWindow.paneconfigure(), and Menu.entryconfigure().

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).

Tkinter widgets to work in wantobjects=True mode.