python-regexHow to match a URL using Python regex?

Python regex can be used to match a URL. The following example code block uses the re.search() function to match a URL:

import re

url = 'https://www.example.com/path/to/page'

match = re.search(r'https?://(www\.)?\w+\.\w+/\S+', url)

if match:
    print(match.group())

The output of the example code is:

https://www.example.com/path/to/page

Code explanation

import re: imports the re module which provides regular expression matching operations.
url = 'https://www.example.com/path/to/page': assigns the URL to a variable.
re.search(r'https?://(www\.)?\w+\.\w+/\S+', url): searches for a match of the regular expression pattern in the URL. The pattern consists of the following parts:
- https?://: matches http or https at the beginning of the URL.
- (www\.)?: matches www. at the beginning of the URL, if present.
- \w+\.\w+: matches the domain name.
- /\S+: matches the path of the URL.
if match:: checks if a match was found.
print(match.group()): prints the matched URL.