Convert a numpy datetime64 to a python datetime.datetime

npdate_to_pydate.py

import datetime as dt 
import numpy as np

def to_datetime(date: np.datetime64) -> dt.datetime:
    """ Converts a numpy datetime64 object to a python datetime object """
    timestamp = ((date - np.datetime64('1970-01-01T00:00:00'))
                 / np.timedelta64(1, 's'))
    return dt.datetime.utcfromtimestamp(timestamp)