Hello, I need help implementing str_to_time, however, I am getting an error stating that timeZones is not defined. Can someone please help me with this, I will provide screenshots.

And this is the complete description:

try: \# Parse the timestamp string using the %.%m.%Y format timestamp = datetime.strptime(timestamp, %.%d.%Y ) except ValueError: return None if tz is None: return timestamp else: timezone = pytz.timezone(tz) return timestamp rimeStamps = ["13.15.2019", "13.13.2015", "2021-01-19 23:57:34"] :imeZones+[None, "Asia/Calcutta", "America/Marigot", "GMT+0"] Eor ts, tz in zip(timestamps, timeZones): print(str_to_time(ts, tz))