make evemu Python 3 aware

[Daniel Martin]

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]

[0] should've pointed to the vendors page:
    http://www.logitech.com/en-us/product/wireless-all-in-onekeyboard-tk820

Meanwhile, I've captured various informations on the device in a blog
post if anyone's interested:
    http://consumenoise.blogspot.com/2014/01/logitech-tk820-linux.html

> 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
> 
> 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
> 
> 
> Comments are welcome,
>     Daniel Martin