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+--- Thread: Tkinter:Unable to bind and unbind function with a button (/thread-25338.html)
Tkinter:Unable to bind and unbind function with a button - shallanq - Mar-27-2020
I'm having trouble binding and unbinding a function(using 2 buttons) to display a keyboard.
I basically want keyboard()to be hidden first, but when the
morn_med_button is clicked, it will appear and it will disappear when confirm_button1 is clicked.
When i run the code, it says:
return self.func(*args)
TypeError:keyboard() takes 0 positional arguments but 1 was given
This is my code below.
from tkinter import *
import RPi.GPIO as GPIO
from tkinter import ttk
from tkinter import font as tkfont
import time
root = Tk()
root.geometry("2000x1900")
root.config(bg="light blue")
root.frame = Frame(root)
morn_med_Text=Text(root,width=20,height=13)
morn_med_label=Label(root,bg="light blue", font=("Arial",15 ))
morn_med_button = Button(root, text="Add Medication", command=add_medication1, font=("Arial", 12))
morn_med_button.place(relx=0.2, rely = 0.76, anchor = CENTER)
confirm_button1=Button(root, text="Confirm", command=confirm1, font=("Arial", 12))
def confirm1():
global morn_med_label
morn_med=morn_med_Text.get("1.0",END)
morn_med_label.place(relx=0.179, rely =0.82, anchor = CENTER)
morn_med_Text.place_forget()
confirm_button1.place_forget()
morn_med_button.place(relx=0.2, rely = 0.76, anchor = CENTER)
morn_med_label.config(text=morn_med)
[u]confirm_button1.bind("<Button-1>",keyboard)[/u]
def keyboard():
morn_med_button.unbind("<Button-1>")
def select(value):
if value == "Clear":
morn_med_Text.delete(1.0,END)
elif value == "Enter":
morn_med_Text.insert(INSERT,'\n')
elif value=="Backspace":
text=morn_med_Text.get(1.0,END)
morn_med_Text.insert(text[:-1],END)
else:
morn_med_Text.insert(END, value)
buttons=[
'q','w','e','r','t','y','u','i','o','p','Backspace','7','8','9','-',
'a','s','d','f','g','h','j','k','l','(',')','4','5','6','+',
'z','x','c','v','b','n','m',',','.','Clear','Enter','1','2','3','/',
' ',
]
label1=Label(root,text='')
label2=Label(root,text='')
label2.grid(row=7,columnspan=15)
label3=Label(root,text='')
label3.grid(row=8,columnspan=15)
varRow=9
varColumn=0
for button in buttons:
command=lambda x=button: select(x)
if button!=" ":
Button(root,text=button,width=7,bg="#000000",fg="#ffffff",
activebackground="#ffffff",activeforeground="#000000",relief='raised',padx=9,
pady=9,bd=7,command=command,font=("Arial",17 )).grid(row=varRow,column=varColumn)
if button==" ":
Button(root,text=button,width=80,bg="#000000",fg="#ffffff",
activebackground="#ffffff",activeforeground="#000000",relief='raised',padx=4,
pady=4,bd=7,command=command,font=("Arial",20 )).grid(row=13,columnspan=20)
varColumn+=1
if varColumn>14 and varRow==9:
varColumn=0
varRow+=1
if varColumn>14 and varRow==10:
varColumn=0
varRow+=1
root.mainloop()
RE: Tkinter:Unable to bind and unbind function with a button - deanhystad - Mar-27-2020
When binding events in tkinter, the fuction you bind needs an event argument. The function you are binding has no arguments.
RE: Tkinter:Unable to bind and unbind function with a button - joe_momma - Mar-28-2020
declare your functions before you create the buttons unless you create a class
python reads your script from top to bottom:
def add_medication1():
keyboard()
def confirm1():
global morn_med_label,confirm_button1
morn_med=morn_med_Text.get("1.0",END)
morn_med_label.place(relx=0.179, rely =0.82, anchor = CENTER)
morn_med_Text.place_forget()
confirm_button1.place_forget()
morn_med_button.place(relx=0.2, rely = 0.76, anchor = CENTER)
morn_med_label.config(text=morn_med)
confirm_button1.bind("<Button-1>",keyboard)
morn_med_Text=Text(root,width=20,height=13)
morn_med_Text.place(x=300,y=300)
morn_med_label=Label(root,bg="light blue", font=("Arial",15 ))
morn_med_button = Button(root, text="Add Medication", command=add_medication1, font=("Arial", 12))
morn_med_button.place(relx=0.2, rely = 0.76, anchor = CENTER)
confirm_button1=Button(root, text="Confirm", command=confirm1, font=("Arial", 12))
confirm_button1.place(x=5,y=400)if you bind a mouse event to a function it requires an argumentdef keyboard(event):
morn_med_button.unbind("<Button-1>")
def select(value):
....# more I used event but it could be anything you want- then you can get information from the event like x= event.x to give you the x,y position of the mouse click