On 10 Apr, 16:29, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> On Apr 10, 3:47 pm, [EMAIL PROTECTED] wrote:
>
> > [...]
> > i use the Label-widget.
>
> Then you should be able to connect a variable to your widget like I
> wrote in my previous post.
> Just try out the example from the Python documentation. Of course in
> your case entrythingy would be the
> Label-widget. Take care to assign values to your variable by using the
> set function.
>
> Dennis Benzinger
i know how to do this already. the problem is i want the text to stay
in the windowa nd not start overwriting "Answer:".
i have solved this by using an Entry for the answer as well but id
prefer using a Label.
here is the code:
from __future__ import division
import Tkinter
from Tkinter import *
mygui = Tkinter.Tk()
mygui.title("Calculator")
l = Label(mygui, text="Answer: ")
l.place(relx=0.15, rely=0.2, anchor=CENTER)
e = Entry(mygui)
e.place(relx=0.4, rely=0.1, anchor=CENTER)
def Disp(nstr):
e.insert(END, nstr)
def Calc():
expr=e.get()
try:
b = Label(mygui, text=eval(expr))
b.place(relx=0.4, rely=0.2, anchor=CENTER)
except:
b = Label(mygui, text="Not computable")
b.place(relx=0.4, rely=0.2, anchor=CENTER)
def Erase():
e.delete(0,END)
x = 0.1
y = 0.4
for char in '123+456-789*0()/.':
b = Button(mygui, text=char, command=lambda n=char:Disp(n),
width=2, height=1)
b.place(relx=x, rely=y, anchor=CENTER)
x=x+0.1
if x==0.5:
x=0.1
y=y+0.1
b = Button(mygui, text="^", command=lambda n="**":Disp(n), width=2,
height=1)
b.place(relx=0.2, rely=0.8, anchor=CENTER)
b = Button(mygui, text="C",command=Erase, width=2, height=1)
b.place(relx=0.3, rely=0.8, anchor=CENTER)
b = Button(mygui, text="=",command=Calc, width=2, height=1)
b.place(relx=0.4, rely=0.8, anchor=CENTER)
mygui.mainloop()
--
http://mail.python.org/mailman/listinfo/python-list
