Change Tkinter label text based on if-statement?
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
add a comment |
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
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
add a comment |
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
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
python user-interface tkinter
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
add a comment |
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
add a comment |
1 Answer
1
active
oldest
votes
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()
that does not work, because it does not run the mainloop then
– Enes
Jan 3 at 12:33
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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()
that does not work, because it does not run the mainloop then
– Enes
Jan 3 at 12:33
add a comment |
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()
that does not work, because it does not run the mainloop then
– Enes
Jan 3 at 12:33
add a comment |
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()
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()
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
add a comment |
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
add a comment |
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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