Aptana studio 3 – Debugger tool

Stepping through code

set the break point by double clicking left side of the code. break point icon will appear next to the line where breakpoint is set.
now click the debug button, it will halt break point set line. from there we can step through code line by line and see result of the execution.

 https://www.youtube.com/watch?v=7ROg6Wwz7Z0

Loading Sub package and avoid attribution error

from scipy import linalg sub-package may be individually imported otherwise we will get error during sub-packages calls inside the code.
http://stackoverflow.com/questions/9819733/scipy-special-import-issue