Splitting a string after a specific character in python

Question

I wanna split everything comes after = and assigning it into a new variable

example:

https://www.exaple.com/index.php?id=24124

I wanna split whatever comes after = which's in this case 24124 and put it into a new variable.

Answer 1

Simply you use .split() and then take the second part only

url = 'https://www.exaple.com/index.php?id=24124'
print(url.split('=')[1])

Answer 2

For your specific case, you could do...

url = "https://www.exaple.com/index.php?id=24124"
id_number = url.split('=')[1]

If you want to store id_number as an integer, then id_number = int(url.split('=')[1]) instead.

Answer 3

You can of course split this specific string. rsplit() would be a good choice since you are interested in the rightmost value:

s = "https://www.exaple.com/index.php?id=24124"

rest, n = s.rsplit('=', 1)
# n == '24124'

However, if you are dealing with URLs this is fragile. For example, a url to the same page might look like:

s = "https://www.exaple.com/index.php?id=24124#anchor"

and the above split would return '24124#anchor', which is probably not what you want.

Python includes good url parsing, which you should use if you are dealing with URLS. In this case it's just as simple to get what you want and less fragile:

from urllib.parse import (parse_qs, urlparse)

s = "https://www.exaple.com/index.php?id=24124"

qs = urlparse(s)
parse_qs(qs.query)['id'][0]
# '24124'