'return true if the given line is an \'unindentor\',
relative to the last \'indent\' event received.'

def _is_unindentor(self, line):

    if (len(self.indent_detail) == 0):
        return False
    indentor = self.indent_detail[(-1)]
    if (indentor is None):
        return False
    match = re.match('^\\s*(else|elif|except|finally).*\\:', line)
    if (not match):
        return False
    return True
