EX_re_test_patterns2.py

"""
~/Python $ python re_test_patterns2.py
Pattern 'ab' ('a' followed by 'b')

 'abbaaabbbbaaaaa'
Traceback (most recent call last):
  File "re_test_patterns2.py", line 29, in <module>
    [('ab', "'a' followed by 'b'"),
  File "re_test_patterns2.py", line 19, in test_patterns
    print ' %s%r' % (prefix, text[s:e], ' ' * (len(text) - e)),
TypeError: not all arguments converted during string formatting
"""