links I find useful:

What is the difference between @staticmethod and @classmethod in Python?

http://stackoverflow.com/questions/28277137/how-to-convert-datatypeobject-to-float64-in-python

http://stats.stackexchange.com/questions/31/what-is-the-meaning-of-p-values-and-t-values-in-statistical-tests

http://stackoverflow.com/questions/17530542/how-to-add-pandas-data-to-an-existing-csv-file

http://stackoverflow.com/questions/13703720/converting-between-datetime-timestamp-and-datetime64

http://stats.stackexchange.com/questions/181/how-to-choose-the-number-of-hidden-layers-and-nodes-in-a-feedforward-neural-netw

http://stackoverflow.com/questions/3028642/regular-expression-for-letters-numbers-and

http://stackoverflow.com/questions/39492251/python-pandas-dataframe-rows-to-columns

http://stackoverflow.com/questions/40029996/pythonic-way-to-fill-bag-of-words

http://stackoverflow.com/questions/31884985/what-does-selecting-the-largest-eigenvalues-and-eigenvectors-in-the-covariance-m

https://en.wikipedia.org/wiki/Precision_and_recall

http://stackoverflow.com/questions/25191620/creating-lowpass-filter-in-scipy-understanding-methods-and-units

git installing

Configuring so that pip install can work from github

pip install from git repo branch

Timeout function if it takes too long to finish

Using pip behind a proxy