I'll definitely check it out. My dream is to be platform independent, i.e., to be able to write / edit / run the same program on any device. So far so good with Windows and Linux, including Raspberry Pi, but my phone feels left out.
The aforementioned QPython includes Kivy libraries. Kivy is cross-platform across Linux, Windows, Mac OSX, Android, and IOS. Its a Python library but seems mostly oriented towards games/graphics. That's a drawback for me, but some might be interested.
As far as cross-platform across desktop and mobile, that's a difficult challenge. Java used to be the go-to if you want to be platform agnostic but that obviously won't cut it if you want to support mobile. You can check out Qt. I only use it on Linux but it apparently supports Windows, Mac OSX, Android, IOS, and Windows Phone (maybe even more).
I'll check those things out. I only need to make any of them work once, because I'll put a wrapper around my most frequently used functions. And I only used Tkinter because it was sitting there, ready to use, before I even learned how to install packages.
