"""
 get_date.py

 extract a date from a string using regular expressions

   $ python get_date.py
   result is  [2020, 9, 29]

 google "python re" for all the details ...

 Jim M in class | Sep 14
"""
import re

# an example string
url = "https://foo.com/some/stuff/2020/09/29/more"

# Here's a regular expression that we can use to "capture"
# the year, month, and day , made up of 4 digits / 2 digits / 2 digits
#
#    (\d{4})/(\d{2})/(\d{2})   # \d  means integer digit

regex = r'(\d{4})/(\d{2})/(\d{2})'   # r'' is "raw string" in pythong

match = re.search(regex, url)
if match:                             # if the regex was matched ...
    results = list(map(int, match.groups()))
    print("result is ", results)