Inheritance, classes, metaclasses, decorators, instances, types library, ABCMeta
https://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python
http://whatis.techtarget.com/definition/instance
https://stackoverflow.com/questions/4613000/what-is-the-cls-variable-used-in-python-classes
https://docs.python.org/3/library/functions.html#classmethod
https://en.wikipedia.org/wiki/Method_(computer_programming)
https://www.quora.com/How-could-you-explain-what-is-a-Method-in-programming
https://docs.python.org/3/library/abc.html
https://docs.python.org/2/library/types.html
https://en.wikipedia.org/wiki/Prettyprint –> https://docs.python.org/2/library/pprint.html
http://python-3-patterns-idioms-test.readthedocs.io/en/latest/ToDo.html#the-remainder-are-from-context-from-the-book
https://en.wikipedia.org/wiki/Parallel_computing
https://en.wikipedia.org/wiki/Lattice_Boltzmann_methods
https://www.youtube.com/watch?v=7lmCu8wz8ro –> expert python
https://stackoverflow.com/questions/23944657/typeerror-method-takes-1-positional-argument-but-2-were-given –> syntactic sugar