The Python version of the solution uses a class Conversion to encapsulate all the methods and properties related to the conversion and evaluation of infix to postfix expressions. This is different ...

assert infix_to_postfix("( A + B ) * ( C + D )") == "A B + C D + *" assert infix_to_postfix("( A + B ) * C") == "A B + C *" assert infix_to_postfix("A + B * C") == "A ...