re.error

exception re.error(msg, pattern=None, pos=None)

Exception raised when a string passed to one of the functions here is not a valid regular expression (for example, it might contain unmatched parentheses) or when some other error occurs during compilation or matching. It is never an error if a string contains no match for a pattern. The error instance has the following additional attributes:

msg

The unformatted error message.

pattern

The regular expression pattern.

pos

The index of pattern where compilation failed.

lineno

The line corresponding to pos.

colno

The column corresponding to pos.