Olek Wojnar

As noted in the [Debian bug](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=967289), GTK 2 was superseded by GTK 3 in 2011, nine years ago. GTK 2 no longer receives any significant upstream maintenance, and in particular...

Replace obsolete @NullableDecl

2

From downstream fix in Debian. Fix for #172

It is no longer available upstream and upgrading to checker-qual is trivial.

Debian's lintian throws errors at source code lines longer than 512 characters

Please update for Python 3

1

Since Python 2 has reached sunset, please update this very useful tool to Python 3. Thanks!

Trivial commit using 2to3 but not running the "long" fixer. This will fix #11.