Reuse part of a Regex pattern

Question

Consider this (very simplified) example string:

1aw2,5cx7

As you can see, it is two digit/letter/letter/digit values separated

Answer 1

Since you're already using re, why not use string processing to manage the pattern repetition as well:

pattern = "P,P".replace("P",r"\d\w\w\d")

re.match(pattern, "1aw2,5cx7")

OR

P = r"\d\w\w\d"

re.match(f"{P},{P}", "1aw2,5cx7")