def parse_date()

in mozregression/dates.py [0:0]

• 14 lines of code
• 6 McCabe index (conditional complexity)

def parse_date(date_string):
    """
    Returns a date or a datetime from a string.
    """
    if len(date_string) == 14 and date_string.isdigit():
        # probably a build id - transform that in a datetime
        try:
            return datetime.datetime.strptime(date_string, "%Y%m%d%H%M%S")
        except ValueError:
            raise DateFormatError(date_string, "Not a valid build id: `%s`")
    regex = re.compile(r"(\d{4})\-(\d{1,2})\-(\d{1,2})")
    matched = regex.match(date_string)
    if not matched:
        raise DateFormatError(date_string)
    try:
        return datetime.date(int(matched.group(1)), int(matched.group(2)), int(matched.group(3)))
    except ValueError as ex:
        raise DateValueError(date_string, ex)