Pandas

 

Here is some extra bonus

• Python Quirck Ref sheet for lambda & general uses -  www.astro.up.pt/~sousasag/Python_For_Astronomers/Python_qr.pdf

• NumPy, SciPy and Pandas  s3.amazonaws.com/quandl-static-content/Documents/Quandl+-+Pandas,+SciPy,+NumPy+Cheat+Sheet.pdf

What next Tutorial :

Data Slicing, SubSetting, Indexing http://datacarpentry.github.io/python-ecology/02-index-slice-subset