[EMAIL PROTECTED] wrote: > using tkinter and python i now have a small App (that will hopefully > soon be a fully functioning calculator) where u can push buttons and > the corresponding number or operator is shown. > > when u press 1, "1" appears on the screen, pres + and "+" appears etc. > > at the moment every output overwrites the previous so what i want to > do is obviosuly to add every new output to a string so that i can read > the string and perform the calculation. > > so i want: > * when pushing the button push the token of the button onto a string > * display the new string, ie "1+2" for example > * want to be able to access this string when pressing calculate so i > can figure out which operators should > be done first so it can solve something like this: "(1+2*3)(3-4/2)" > and not just simple "1+2"-stuff. > > do i have to have some global string-variable in the GUIframework > then? im not sure where to start... >
input = "hello" input += " world" print input --output:-- hello A caculator program is pretty complex. Based on your rudimentary questions, I don't think you have enough programming experience to tackle a project like that yet. -- http://mail.python.org/mailman/listinfo/python-list
