kennethreitz/python-guide — pull request #384 by rogererens (2014-03-19 22:02:54+00:00)
Title: Reset list 'a'

The result of the previous block containing the map example left 'a' to be [6, 7, 8], so resetting 'a' back to [3, 4, 5] seems to keep the example in line with the other ones.