30 Days Of Python

Hi everyone. I hope everyone is doing well. Thanks @neodynamics and @fisiha1224 for answering my question. I'm back with another question today. When I typed in "print(1 is 1)" to the python shell, it returned "True". But it also diplayed above it, "<stdin>:1: SyntaxWarning: "is" with 'int' literal. Did you mean "=="?" I'm curious why it displayed this message. Thanks