from datetime import datetime


def get_and_print_time_since(event_name, event_time):
    """
    Print and return a string showing how much time has passed since the
    current running script reached a certain part of its process
    :param event_name: String to print after 'Time elapsed since '
    :param event_time: datetime object representing a time in the past
    :return: String with an easily human-readable message showing how much time
             has passed since {event_time} when {event_name} happened.
    """
    timestamp = ("\nTime elapsed since {}: {}"
                 .format(event_name, datetime.now() - event_time))
    print(timestamp)
    return timestamp