Parse a datetime string in Python

parse_datetime.py

from datetime import datetime

class DateTimeParseError(Exception):
    pass

def parse_datetime(date):
    """
    Checks if a date has a valid format ISO8601 formatting and returns
    a parsed datetime object with the correct timezone if applicable.

    Args:
        date (str): Date formatted as a string
    Returns:
        Date (datetime.datetime): Date object

    """
    try:
        date_object = datetime.strptime(date, "%Y-%m-%dT%H:%M:%SZ")
        return date_object
    except (ValueError, TypeError):
        pass
    try:
        date_object = datetime.strptime(date, "%Y-%m-%dT%H:%M:%S.%fZ")
        return date_object
    except (ValueError, TypeError):
        pass
    try:
        date_object = datetime.strptime(date, "%Y-%m-%dT%H:%M:%S.%f")
        return date_object
    except (ValueError, TypeError):
        pass
    raise DateTimeParseError