Naming Variables

Question

I can't understand what goes wrong with the variable [ user_id ]. Isn't user_id is a valid variable? To me it's valid because it doesn't start with NUMBER, doesn't include any SPACE or any other invalid characters I know. But system is showing it as an invalid variable. Please make me understand. Oh, third brackets are used just to highlight.

Answer 1

Antony Dude , sorry mate. You can share the code, you just need to copy it first and then go to the code playground and create a new code, then paste your copied code.
It's not direct, but it is possible.

Answer 2

Can you share your code as per this guide? Maybe there's something else.

https://sololearn.com/compiler-playground/Wek0V1MyIR2r/?ref=app

Answer 3

I can't share that code as it was from LEARN PYTHON in this Sololearn. Also as I am not a pro user, I couldn't check that explanation of the mistake. Thank you for your will to help.

Answer 4

which course and what lesson?

the only user_id I found is in a choose the correct answer type question and it worked fine without any anomaly.