Originally Posted by otsaloma

Maybe something in platform? Sailfish below, I don't know what others return.

Code:

$ python3
Python 3.4.3 (default, May 12 2016, 02:20:34) 
[GCC 4.8.3 20140106 (Mer 4.8.3-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform
>>> platform.platform()
'Linux-3.4.108.20160401.1-armv7l-with-glibc2.4'
>>> platform.uname()
uname_result(system='Linux', node='Sailfish', release='3.4.108.20160401.1', version='#1 SMP PREEMPT Thu May 12 02:21:45 UTC 2016', machine='armv7l', processor='armv7l')

Checking for the existance of a particular file or directory with os.path.isfile/isdir should be quite simple too if you know what to check -- e.g. /usr/lib/qt5/qml/Sailfish.

And in case you're calling executables like notify-send, you can check if they're available with shutil.which.