make evemu Python 3 aware

[Peter Hutterer]

On Thu, Jan 02, 2014 at 10:47:50PM +0100, Daniel Martin wrote:
> Hi,
> 
> I just wanted to test evemu(-describe) with my new Logitech tk820 [0]
> and noticed that evemu doesn't like to be used with Python 3(.3). So,
> I've fixed that ...
> 
> First, make testing more easy by being able to change the python binary
> via the environment:
> [PATCH evemu 01/11] Make it possible to overwrite python binary via env
> 
> Python 3 awareness:
> [PATCH evemu 02/11] py: Replace print statement with function call
> [PATCH evemu 03/11] py: Don't use find_library for libevemu.so
> [PATCH evemu 04/11] tests: Replace tab with spaces
> [PATCH evemu 05/11] py: Raise exception objects
> [PATCH evemu 06/11] py: Fix file opening
> [PATCH evemu 07/11] py: Fix file object detection
> [PATCH evemu 08/11] py: Add _callstr() - returns str object
> [PATCH evemu 09/11] tests: Open temporary device file in text mode
> [PATCH evemu 10/11] tests: Fix tests with fixed lists

unless otherwise commented: Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>

> This one changes the module API, skip it if you don't like it:
> [PATCH evemu 11/11] py: Change has_prop() and has_event() to return bool

would be nice, but before we change this we should figure out if the python
API is actually correctly handled right now and in sync with everything - my
guess is that it probably isn't.

As for the actual change: I'm not sure it really gives us a lot of
benefits. it'll likely break any existing users (if there are any) for
little more than a cosmetic change. otoh, we just bumped the ABI anyway, so
if we do this the time is now (together with any others we need to do). I'll
leave it up to Benjamin to make the call.

Cheers,
   Peter