Hi, I am trying to implement str_to_time, but it says that my error message is 'parse' is not defined. Can someone help me? I will also provide my code.

try: timestamp = parser.parse(timestamp) except: return None if tz == None: return timestamp else: timezone = pytz.timezone(tz) return timestamp timeStamps = ["13.15.2019", "13.13.2015", "2021-01-19 23:57:34"] timeZones+[None, "Asia/Calcutta", "America/Marigot", "GMT+0"]