raise an exception when a module doesn't exist.

Thanks to Pavel Aslanov for the bug report.

when reference or offset size is not a power of two.

when reference or offset size is not a power of two.

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

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

This also fixes a quadratic compilation time issue noticeable when compiling
code with a large number of "and" and "or" operators.

This also fixes a quadratic compilation time issue noticeable when compiling
code with a large number of "and" and "or" operators.

Patch prepared by David Harrigan.

unittest.mock.Mock to simplify the synchronization with Trollius

simplify the synchronization with Trollius

Patch provided by Berker Peksag.