requestion regarding regular expression

[BartlebyScrivener]

That's it. Thank you! Very instructive.

Final:

path = "d:/emacs files/emacsinit.txt"
lines = open(path).readlines()
# next two lines all on one
starts = [i for i, line in enumerate(lines) if
line.startswith('(defun')]
for i, start in enumerate(starts):
    while start > 0 and lines[start-1].startswith(';'):
        starts[i] = start = start-1
        print starts