pytest.py

#!/usr/bin/python

count = 0
while count < 9:
  print 'The count is', count
  count += 1 #remember this could be count = count + 1

## It prints:
# The count is 0
# The count is 1
# The count is 2
# The count is 3
# The count is 4
# The count is 5
# The count is 6
# The count is 7
# The count is 8