Do you ask yourself why you souldn't use mutable types as default value for parameters in Python? I'm sure you ask at least if you are not a junior. Probably, your answer is "It causes to strange side effects". However, only a tiny part of python developers makes step throw and figure out how it works under the hood.

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Kivy is an interesting project that allows you build GUI applications for different platform including iOS and Android. If you believe the rumors... I decided to check out is Kivy suits to build for small python GUI app for 5 major platforms: Mac OS X, Linux, Windows, iOS, and Android. In this series I'll try to build a small app for learning foreign language vocabulary and deploy it on all these platforms.

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