Change Tkinter label text based on if-statement?












-1















I am trying to create a simple GUI using Tkinter. I created a label with a text. This text should be changed when a button (physical) is pressed. I read about using the after() method, but it only runs a method ones, it should always check for user input.



while 1:
root = tk.Tk()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
input_state = GPIO.input(21)

menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()

if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()









share|improve this question

























  • You can't use .Tk() ... .mianloop() inside a loop. Read How do you run your own code alongside Tkinter's event loop? and follow that pattern.

    – stovfl
    Jan 3 at 10:47











  • the code above already is in it's own process/thread. I am very new to this and don't know how to get that working on my code. Could you help me out please?

    – Enes
    Jan 3 at 11:15











  • There are couple problems here. It's to broad for SO, setup a GitHubGist, i will comment there.

    – stovfl
    Jan 3 at 14:29
















-1















I am trying to create a simple GUI using Tkinter. I created a label with a text. This text should be changed when a button (physical) is pressed. I read about using the after() method, but it only runs a method ones, it should always check for user input.



while 1:
root = tk.Tk()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
input_state = GPIO.input(21)

menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()

if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()









share|improve this question

























  • You can't use .Tk() ... .mianloop() inside a loop. Read How do you run your own code alongside Tkinter's event loop? and follow that pattern.

    – stovfl
    Jan 3 at 10:47











  • the code above already is in it's own process/thread. I am very new to this and don't know how to get that working on my code. Could you help me out please?

    – Enes
    Jan 3 at 11:15











  • There are couple problems here. It's to broad for SO, setup a GitHubGist, i will comment there.

    – stovfl
    Jan 3 at 14:29














-1












-1








-1








I am trying to create a simple GUI using Tkinter. I created a label with a text. This text should be changed when a button (physical) is pressed. I read about using the after() method, but it only runs a method ones, it should always check for user input.



while 1:
root = tk.Tk()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
input_state = GPIO.input(21)

menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()

if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()









share|improve this question
















I am trying to create a simple GUI using Tkinter. I created a label with a text. This text should be changed when a button (physical) is pressed. I read about using the after() method, but it only runs a method ones, it should always check for user input.



while 1:
root = tk.Tk()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
input_state = GPIO.input(21)

menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()

if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()






python user-interface tkinter






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 3 at 11:35







Enes

















asked Jan 3 at 10:15









EnesEnes

11




11













  • You can't use .Tk() ... .mianloop() inside a loop. Read How do you run your own code alongside Tkinter's event loop? and follow that pattern.

    – stovfl
    Jan 3 at 10:47











  • the code above already is in it's own process/thread. I am very new to this and don't know how to get that working on my code. Could you help me out please?

    – Enes
    Jan 3 at 11:15











  • There are couple problems here. It's to broad for SO, setup a GitHubGist, i will comment there.

    – stovfl
    Jan 3 at 14:29



















  • You can't use .Tk() ... .mianloop() inside a loop. Read How do you run your own code alongside Tkinter's event loop? and follow that pattern.

    – stovfl
    Jan 3 at 10:47











  • the code above already is in it's own process/thread. I am very new to this and don't know how to get that working on my code. Could you help me out please?

    – Enes
    Jan 3 at 11:15











  • There are couple problems here. It's to broad for SO, setup a GitHubGist, i will comment there.

    – stovfl
    Jan 3 at 14:29

















You can't use .Tk() ... .mianloop() inside a loop. Read How do you run your own code alongside Tkinter's event loop? and follow that pattern.

– stovfl
Jan 3 at 10:47





You can't use .Tk() ... .mianloop() inside a loop. Read How do you run your own code alongside Tkinter's event loop? and follow that pattern.

– stovfl
Jan 3 at 10:47













the code above already is in it's own process/thread. I am very new to this and don't know how to get that working on my code. Could you help me out please?

– Enes
Jan 3 at 11:15





the code above already is in it's own process/thread. I am very new to this and don't know how to get that working on my code. Could you help me out please?

– Enes
Jan 3 at 11:15













There are couple problems here. It's to broad for SO, setup a GitHubGist, i will comment there.

– stovfl
Jan 3 at 14:29





There are couple problems here. It's to broad for SO, setup a GitHubGist, i will comment there.

– stovfl
Jan 3 at 14:29












1 Answer
1






active

oldest

votes


















-2














You don't know what is a loop ? you can try with



root = tk.Tk()
menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while 1:
input_state = GPIO.input(21)
if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()





share|improve this answer
























  • that does not work, because it does not run the mainloop then

    – Enes
    Jan 3 at 12:33











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









-2














You don't know what is a loop ? you can try with



root = tk.Tk()
menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while 1:
input_state = GPIO.input(21)
if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()





share|improve this answer
























  • that does not work, because it does not run the mainloop then

    – Enes
    Jan 3 at 12:33
















-2














You don't know what is a loop ? you can try with



root = tk.Tk()
menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while 1:
input_state = GPIO.input(21)
if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()





share|improve this answer
























  • that does not work, because it does not run the mainloop then

    – Enes
    Jan 3 at 12:33














-2












-2








-2







You don't know what is a loop ? you can try with



root = tk.Tk()
menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while 1:
input_state = GPIO.input(21)
if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()





share|improve this answer













You don't know what is a loop ? you can try with



root = tk.Tk()
menutxt = tk.StringVar()
menuLabel = tk.Label(root, textvariable=menutxt).pack()
GPIO.setmode(GPIO.BCM)
GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while 1:
input_state = GPIO.input(21)
if input_state == False:
menutxt.set("TEXT2")
else:
menutxt.set("TEXT1")
root.mainloop()






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 3 at 12:03









patelpatel

226117




226117













  • that does not work, because it does not run the mainloop then

    – Enes
    Jan 3 at 12:33



















  • that does not work, because it does not run the mainloop then

    – Enes
    Jan 3 at 12:33

















that does not work, because it does not run the mainloop then

– Enes
Jan 3 at 12:33





that does not work, because it does not run the mainloop then

– Enes
Jan 3 at 12:33




















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