I cant find anwser anywhere for this question. I have a number and when i click a button i want that number + 1 and so on so like this.
from tkinter import *
root = Tk()
zeroo = 0
def add():
zeroo = 0
for zeroo in range(900):
zeroo = zeroo + 1
print(zeroo)
x = Button(root,text="Do it!", command=add)
x.pack()
x.mainloop()
But this code only prints 900 and what I want is this
When you click the button it prints 1
When you click again it prints 2
and so on but i dont know how
I don't know Tkinter at all but try this
from tkinter import *
root = Tk()
zeroo = 0
def add(zeroo):
if zeroo <= 900:
return zero + 1
x = Button(root,text="Do it!", command=add)
y = Label(root, text=zeroo)
x.pack()
x.mainloop()
Well that just prints nothing
#2 well i edited the code
no error but it prints nothing
from tkinter import *
root = Tk()
zeroo = 0
def add():
if zeroo <= 900:
return zeroo + 1
print(zeroo)
x = Button(root,text="Do it!", command=add)
y = Label(root, text=zeroo)
x.pack()
x.mainloop()
You can use
IntVar() which has a get method.
>>> import tkinter
>>> root = tkinter.Tk()
>>> counter = tkinter.IntVar()
>>> counter.get() + 1
1
import tkinter
root = tkinter.Tk()
root.geometry("200x100")
counter = tkinter.IntVar()
def add():
counter.set(counter.get() + 1)
tkinter.Label(root, textvariable=counter).pack()
tkinter.Button(root, text="Do it!", command=add, fg="dark green").pack()
root.mainloop()Do no use
from tkinter import * even if this is common in many Tkinter tutorials.
(Apr-29-2017, 01:14 PM)JohnNo Wrote: [ -> ]#2 well i edited the code
no error but it prints nothing
return zeroo + 1
print(zeroo)
Of coarse it prints nothing, you return from the function before ever trying to print anything.
Aside from that, though, try to avoid global variables. It might be a hassle at first, but it'll make your life much better later on :)
All the cool kids have posted code, so here's some from me, too:
>>> import tkinter as tk
>>> class Counter(object):
... def __init__(self, start: int = 0):
... self.value = start
... def add(self) -> int:
... if self.value < 900:
... self.value += 1
... print(self.value)
... return self.value
...
>>> clicks = Counter()
>>> root = tk.Tk()
>>> tk.Button(root, text="click me!", command=clicks.add).pack()
>>> root.mainloop()
1
2
3
4
5
6
>>>
You get 900 because you made the script go in a range from 0 to 899 with x
Remove that ****.