Let's say I have a string:
s = "4n5n6n"
I would like to create a regex that removes everything except numbers and the n at the end of a string. So the final solution should look like this:
s = "456n"
If I use a regex like so:
re.sub(r'[^n$\d]', "", s)
The $ seems to lose its meaning when inside the brackets. What is the solution to this?