Question about an exercise: Fill in the blanks to create a pattern that matches strings that contain 3 characters

Question

The exercise says like this: Fill in the blanks to create a pattern that matches strings that contain 3 characters, out of which the last character is an exclamation mark.

Ok, this is my question: it asks 3 char but wouldn't be the same

"--!

Answer 1

I have tried --!$ and ..!$ Only the last one works. You can use the sample code to try for yourself. And I checked the python documentation "-" is not a meta character.

https://code.sololearn.com/cuHpCaCN9nE4/?ref=app

Answer 2

Thanks for the reply Paul! i get it now!

Answer 3

..!

Answer 4

..!