The question is more for what then why. A Friend told me that Python is state of the art ( this was 2006 ) and a must have on your skill list. This was the time python got pushed because of its beauty in coding. No semicolon no curly brackets just a colon and a line indent - perfect.
I found out it is much more. Since raspberry fans know what I am talking about python became a major scripting language on market. Resourceintensive mathematical operations are programmed in python as project prototype and often lots of thos mathematic algorithm are not even ported to an other low-level language.
Python can do everything on every platform and any Os.