There are some AMAZING resources online to learn python and Data Science in general. Here are an incomplete list of sites/pages I like to go to. I have started using Pandas/ SciPy a lot and love it.  I plan to keep adding to this page.

Python:                                                                                                                    

• Coursera: -many courses.                                                                                                   
• Building Skills in python 
•  Google-Python BootCamp   
•  Pandas-BYU ML -2013 Bootcamp
•  Pandas CookBook
•   Python Tips,Tricks and Hacks
•  Learn Python Programming @ Codecademy

Data Science     

• Yaser Abu-Mostafa’s Caltech class “Learning From Data”
• KDNuggets
• JHU’s Data Sciences classes on Coursera
• Courses offered at IACS at Harvard
• A data mining map

Using R

•      R-bloggers
•     An Introduction to Statistical Learning with Applications in R  –playlists and book