Have you tried running the bat file, then "pip install mysql"? IDLE will use the default python interpreter, not the kivy one, where it needs to be installed. Not sure about IDLE, but this might help.
https://github.com/kivy/kivy/wiki/Setting-Up-Kivy-with-various-popular-IDE%27s
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I would try using the Python 2.7 version. Python 3.3 is not yet supported on Python-for-Android....
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