Repeat all steps until ... If you see an operator, pop off enough stuff from the stack, do the operation, and put the result back on the stack. In Python, this is very simple (see the entire ...

Python supports unary operators for no change and negation, + and -, respectively; and binary arithmetic operators +, -, *, /, //, %, and **, for addition ...

Python supports unary operators for no change and negation, + and -, respectively; and binary arithmetic operators +, -, *, /, //, %, and **, for addition ...