forked from loafle/openapi-generator-original
* Removes future from python-exp v3 sample * Removes future from python-exp v2 sample * Deletes future from remaining python-exp files * Removes six from python-exp templates * Removes six from python-exp samples * Removes mock from python-exp * Python-exp switched to py3 * Removes python 2.7 for python-exp ci testing * Requires python>=3.3 for python-exp * Reverts unnecessary changes to two templates