[Tutor] Why does counting to 20 million stress my computer?

[Alan Gauld]

>      for k in range(max):

This line creates a list of max numbers. Each number takes up 
several bytes of RAM(4+?). So 20 million numbers is over 
80MB RAM being used.

You probably should investigate generators for this kind of 
thing, or at least use xrange() instread of range()

Alan G.