Learning softwares: Python

Quantitative Economics
      Using Python for numerical optimization and as a substitute for Matlab.

Python for Economists
     Handling strings, text-editing and web search. Some comparisons to Stata are provided. (Thanks to Sung for the link!)

EDX: 6.00.1x Introduction to Computer Science and Programming Using Python
    Online Course Ware. It should be easier to learn by having a lecture.

More to be updated...