Python Regular Expressions Examples - the Dot, Full Stop, or Period

>>> import re
>>> list = ['cat', 'car', 'cap', 'cab', 'cad', 'can', 'Katze', 'Auto',
'Deckel', 'Droschke', 'Flegel', 'Dose', 'CHAT', 'VOITURE', 'CHAPEAU',
'CABINE', 'DAO', 'BIDON']
>>> y = re.compile('c.b')
>>> for x in list:
...     if y.match(x):
...             print x
...
cab