I would like to match strings not beginning with '/webalizer'. How can I do this?
Are you sure you need a regular expression? The str.startswith method is what I would normally use to solve this kind of problem:
py> lst = ['aax', 'abx', 'acx', 'aay', 'aby', 'acy']
py> [s for s in lst if not s.startswith('ab')]
['aax', 'acx', 'aay', 'acy']If you do need a regular expression, Steve Holden's suggestion about negative lookahead assertions is the right way to go:
py> s = 'aaxabxacxaayabyacy'
py> re.compile(r'(?!ab).{2}[xy]+').findall(s)
['aax', 'acx', 'aay', 'acy']Steve -- http://mail.python.org/mailman/listinfo/python-list
