replace the alphanumeric numbers with X

I am trying to replace the alphanumeric text with X for numbers but my text also has got other numbers which are not alphanumeric and those not to be replaced. I could able to locate the alphanumeric using the code below but unable to replace them.

Code

result = re.sub(r'\S*\d+\S*,'',text)

text = my text contains of the 33109 following values RT3123SO55 and also with certain numbers godwil_5708 and 323stwe and 8y9yc2 456453

expected output is

my text contains of the 33109 following values RTXXXXSOXX and also with certain numbers godwil_XXXX and XXXstwe and XyXycX 456453

>Solution :

I think you could try to use PyPi’s regex library instead:

\b\d+(?:\.\d+)?\b(*SKIP)(*F)|\d

See an online demo

• \b\d+(?:\.\d+)?\b – First match what we don’t want. In this case I matched any 1+ digits with optional decimals inbetween word-boundaries;
• (*SKIP)(*F) – Forget what we matched and exclude it from the final results;
• | – Or;
• \d – Any single digit.

import regex as re
s = 'my text contains of the 33109 following values RT3123SO55 and also with certain numbers godwil_5708 and 323stwe and 8y9yc2 456453'
print(re.sub(r'\b\d+(?:\.\d+)?\b(*SKIP)(*F)|\d', '*', s))

Prints:

my text contains of the 33109 following values RT****SO** and also with certain numbers godwil_**** and ***stwe and *y*yc* 456453