a short notes from stackoverflow about super() in python2 and python3

python regular expression in text processing

text analysis to count word frequency, training data and using pipeline to automatic the job

recursion function is very useful in math/stat like decision tree or optimization. this is an example on how to build recursion function

a convenient way to set up between host/guest machine and dropbox to share data and scripts

how to share folder from host machine to ubuntu guest machinve in vmware