Just to confirm: curses SIGWINCH handling is still (2.7/3.2) broken after importing readline.

Readline seems to set the LINES/COLUMNS environment vars, and this confuses curses, even if curses is imported after readline.

Clearing the LINES/COLUMNS vars after import readline fixes the issue:
os.environ['LINES'] = os.environ['COLUMNS'] = ''
or
os.unsetenv('LINES'); os.unsetenv('COLUMNS')
(or other variations).

I spent a couple hours tearing my hair out over this, before I found this report.

It may be possible for Python to work around this readline behavior by saving LINES/COLUMNS and restoring them after initializing readline.

Or maybe this should just be documented somewhere.