I am writing a pretty basic calculator for functions (for example f(x)=x+5), and the first step is writing a quick function to calculate the result if we already know all the variables. Source code is: def calc(function, **kwargs): if re.fullmatch(r'[0-9a-z+\-*/()]+', function) != None: return eval(function) return None But I need to add a script that changes the function to add in the values instead of the variables. For example, if I call my calc() as calc('x+5*y', x=2, y=7), it should change the function to simply '2+5*7', so that I could put it into eval(). Does anybody have any ideas on how this would be possible, or what are some alternative methods for this? Continue reading...
