Failing regex

[snippsat]

This should work.

>>> import re
>>> 
>>> s = 'BG13TPPV1234B'
>>> r = re.search(r"\w+\d{2}TPPV\d+[BC]", s)
>>> r.group()
'BG13TPPV1234B'
>>> 
>>> s = 'BG13TPPV9999C'
>>> r = re.search(r"\w+\d{2}TPPV\d+[BC]", s)
>>> r.group()
'BG13TPPV9999C'
>>> 
>>> s = 'BG13SPPV1245B'
>>> r = re.search(r"\w+\d{2}TPPV\d+[BC]", s)
>>> r.group()
Traceback (most recent call last):
  File "<interactive input>", line 1, in <module>
AttributeError: 'NoneType' object has no attribute 'group'