w3resource

Python: Extract year, month and date from an url

Python Regular Expression: Exercise-24 with Solution

Write a Python program to extract year, month and date from an url.

Sample Solution:-

Python Code:

import re
def extract_date(url):
        return re.findall(r'/(\d{4})/(\d{1,2})/(\d{1,2})/', url)
url1= "https://www.washingtonpost.com/news/football-insider/wp/2016/09/02/odell-beckhams-fame-rests-on-one-stupid-little-ball-josh-norman-tells-author/"
print(extract_date(url1))

Sample Output:

[('2016', '09', '02')]

Pictorial Presentation:

Python: Regular Expression - Extract year, month and date from an url.

Flowchart:

Flowchart: Regular Expression - Extract year, month and date from an url.

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to replace whitespaces with an underscore and vice versa.
Next: Write a Python program to convert a date of yyyy-mm-dd format to dd-mm-yyyy format.

What is the difficulty level of this exercise?

Test your Python skills with w3resource's quiz



Python: Tips of the Day

Getting the last element of a list:

some_list[-1] is the shortest and most Pythonic.

In fact, you can do much more with this syntax. The some_list[-n] syntax gets the nth-to-last element. So some_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.

You can also set list elements in this way. For instance:

>>> some_list = [1, 2, 3]
>>> some_list[-1] = 5 # Set the last element
>>> some_list[-2] = 3 # Set the second to last element
>>> some_list
[1, 3, 5]

Note that getting a list item by index will raise an IndexError if the expected item doesn't exist. This means that some_list[-1] will raise an exception if some_list is empty, because an empty list can't have a last element.

Ref: https://bit.ly/3d8TfFP