How to extract amount debited amount from SMS?

Question

I want to extract the debited amount from the SMS

my sms content is

Cash withdrawal of Rs3,000.00 made on Kotak Debit Card X2694 on 08-01-2020 at #Acoount Number#.Avl bal is Rs 110.32.Not you?Visit kotak.com/fraud. Transactions on non-Kotak ATMs are chargeable beyond 5 per month(3 for Metro locations), if applicable, as per your account variant. Visit www.kotak.com for details.

Answer 1

As suggested by Anunay, regex would solve your issue with a single line.

Personally, I'm a newbie to regex. A naive method I could suggest is to parse the string based on the occurrence of "Rs" and ".". Then, remove all the (,)commas and convert the String to a float.

messageString = 'Your message as a String'
startIndex = messageString.index('Rs') + 2
endIndex = messageString.index('.') + 3
debitAmount = float(messageString[startIndex: endIndex].replace(',',''))
print(debitAmount)

Sorry, for my Python implementation.