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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.

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Next: Write a Python program to convert a date of yyyy-mm-dd format to dd-mm-yyyy format.

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Python: Tips of the Day

Time it:

timeit library is great for timing Python execution times. Just pass a function in string format to timeit.timeit() method and it will carry out 1 million executions to report the minimum time the code takes.

Its very useful to compare small code pieces and different functions but can be sluggish with big code.

Check out the example below demonstrating the execution time difference between 2 very similar list comprehension methods in Python:

import timeit
lst1='''list(range(100))'''
lst2='''[i for i in range(100)]'''
a=timeit.timeit(lst1)
b=timeit.timeit(lst2)
print(a, b, sep="------")

Output:

1.9301698543131351------5.389458132907748