Python Regular Expression Examples: Escaped w ('\w')

>>> import re
>>> english = '"Never increase, beyond what is necessary, the number of entities required to explain anything." -- William of Ockham (1285-1349)'
>>> print re.findall(r'\Sn\w+', english)
['increase', 'ond', 'entities', 'anything']
>>> print re.findall(r'\w+\s', english)
['Never ', 'beyond ', 'what ', 'is ', 'the ', 'number ', 'of ', 'entities ', 'required ', 'to ', 'explain ', 'William ', 'of ', 'Ockham ']