def deserialize_iso()

in alibabacloud_oss_v2/serde.py [0:0]

• 32 lines of code
• 9 McCabe index (conditional complexity)

def deserialize_iso(date_time: str) -> datetime.datetime:
    """Deserialize ISO-8601 formatted string into Datetime object.
    """
    if not date_time:
        return None
    if date_time[-1] == "Z":
        delta = 0
        timestamp = date_time[:-1]
    else:
        timestamp = date_time[:-6]
        sign, offset = date_time[-6], date_time[-5:]
        delta = int(sign + offset[:1]) * 60 + int(sign + offset[-2:])

    check_decimal = timestamp.split(".")
    if len(check_decimal) > 1:
        decimal_str = ""
        for digit in check_decimal[1]:
            if digit.isdigit():
                decimal_str += digit
            else:
                break
        if len(decimal_str) > 6:
            timestamp = timestamp.replace(decimal_str, decimal_str[0:6])

    if delta == 0:
        tzinfo = datetime.timezone.utc
    else:
        tzinfo = datetime.timezone(datetime.timedelta(minutes=delta))

    try:
        deserialized = datetime.datetime.strptime(
            timestamp, "%Y-%m-%dT%H:%M:%S.%f")
    except ValueError:
        deserialized = datetime.datetime.strptime(
            timestamp, "%Y-%m-%dT%H:%M:%S")

    deserialized = deserialized.replace(tzinfo=tzinfo)
    return deserialized