>>> pattern = "foobarbaz\.com\\"
>>> print pattern
foobarbaz\.com\
>>> regex.compile(pattern)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/regex.py", line 345, in compile
return _compile(pattern, flags, kwargs)
File "/usr/local/lib/python2.7/dist-packages/regex.py", line 490, in _compile
caught_exception.pos)
_regex_core.error: bad escape (end of pattern) at position 15