Why this blue color underlines are appears in vs-code. code is running but it mentioned as problem below.. can anyone help on this please?


I am not into Python but the messages seem pretty straightforward.

You would need to add a module called docstring for line 1 to be valid. Now I did not find any line for that. It rather seems that you should use the __doc__ attribute.
Now it may be related to pylint.

And you should rename massage to MASSAGE (Didn’t you mean MESSAGE?)

Sometimes the underlines are pretty trivial and it will tell you when you put your mouse over the word that’s underlined. It could be very simple, such as using the correct case format as indicated in the second error message.

The first error message I don’t understand.