How to format date string via multiple formats in python

 Try each format and see if it works:

from datetime import datetime

def try_parsing_date(text):
    for fmt in ('%Y-%m-%d', '%d.%m.%Y', '%d/%m/%Y'):
        try:
            return datetime.strptime(text, fmt)
        except ValueError:
            pass
    raise ValueError('no valid date format found')

from : https://stackoverflow.com/questions/23581128/how-to-format-date-string-via-multiple-formats-in-python