That sounds about right. I usually use this simple snippet as my starting point [1]. As you can see, to implement a working stack evaluator one has to do a litt

That sounds about right. I usually use this simple snippet as my starting point [1]. As you can see, to implement a working stack evaluator one has to do a little bit more than just handle infix operators. [1] PyParsing Simple Calc - see the evaluateStack() function. https://github.com/pyparsing/pyparsing/blob/master/examples/SimpleCalc.py https://github.com/pyparsing/pyparsing/blob/master/examples/...