Oh that's clever though! You figured out a way to get it done!

thanks for lowering my self-esteem

really nice. unkilled me

Good work dude, you are learning and you got to the solution. That guy is a douche, criticizing beginners code

Thanks for the feedback i was a beginner back then

I didn't realize that the confusion was about the operator, thinking it was about the definition of a pangram. Didn't mean to be harsh.

What if the entire string is made up of more than 26 types of punctuation/special symbols and no alphabets?

thanks for the answer !! just have wanted to ask the same question as op before

There were no random tests at that time...

The simple answer is: there isn't because there isn't.
You can take slices outside of the range of the sequence in Python, it just returns an empty sequence. This is often more useful than having an error.

For example, if you have a lot of comments and want to show the first 20 letters of each one, you can just do that without having to check whether the comment is longer than 20 chars:

for comment in comments:
    print(comment[:20])

The definition of a pangram is that it uses all 26 letters. The rest is irrelevant.

x) == smile while closing the eyes forcefully