Mixing
Why does my tkinter window only work when created globably?
When I created this module I first made the tkinter window (all of its settings globally) it worked as intended. I could run the module and the window worked, taking the input from the entry field and displaying the welcome or error message. But when I put them into a function, it stopped working correctly, as shown.
How the window looks when created globally, with the button and input working:
https://gyazo.com/ffcb16416b8a971c09bfa60ee9367bbd
How it looks when created inside the function:
https://gyazo.com/c8858a2793befafa41e71d1099f021d3
The error message pops up straight away, then the main window with the entry field but not the button.
Here's the code where I created the window and settings inside a function:
def userSign(userEntry):
userId = userEntry.get()
if userId.isdigit() == True and len(userId) == 4:
welcomeWindow = tkinter.Tk()
welcomeWindow.title("Welcome")
welcomeWindow.geometry("200x50")
welcome = tkinter.Label(master=welcomeWindow, text="Welcome "+userId,font=("Helvetica", 18, "bold"))
welcome.grid()
welcomeWindow.mainloop()
else:
errorWindow = tkinter.Tk()
errorWindow.title("ERROR")
errorWindow.geometry("500x50")
error = tkinter.Label(master=errorWindow, text="ERROR: "+userId +" DOES NOT MEET CRITERIA", font=("Helvetica", 18, "bold"))
error.grid()
userId=""
errorWindow.mainloop()
def show():
window = tkinter.Tk()
window.title("Sign In")
window.geometry("250x100")
signInPrompt = tkinter.Label(master = window, text = "Enter your ID to sign in")
signInPrompt.grid(column=0,row=2)
userEntry = tkinter.Entry(master = window)
userEntry.grid(column=0,row=4)
enterButton = tkinter.Button(master = window, text="Sign in", command=userSign(userEntry))
enterButton.grid(column=0,row=6)
window.mainloop()
How do I get it so that my window works correctly when created inside functions as this module needs to be called by a different, main module.
python tkinter
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
add a comment |
When I created this module I first made the tkinter window (all of its settings globally) it worked as intended. I could run the module and the window worked, taking the input from the entry field and displaying the welcome or error message. But when I put them into a function, it stopped working correctly, as shown.
How the window looks when created globally, with the button and input working:
https://gyazo.com/ffcb16416b8a971c09bfa60ee9367bbd
How it looks when created inside the function:
https://gyazo.com/c8858a2793befafa41e71d1099f021d3
The error message pops up straight away, then the main window with the entry field but not the button.
Here's the code where I created the window and settings inside a function:
def userSign(userEntry):
userId = userEntry.get()
if userId.isdigit() == True and len(userId) == 4:
welcomeWindow = tkinter.Tk()
welcomeWindow.title("Welcome")
welcomeWindow.geometry("200x50")
welcome = tkinter.Label(master=welcomeWindow, text="Welcome "+userId,font=("Helvetica", 18, "bold"))
welcome.grid()
welcomeWindow.mainloop()
else:
errorWindow = tkinter.Tk()
errorWindow.title("ERROR")
errorWindow.geometry("500x50")
error = tkinter.Label(master=errorWindow, text="ERROR: "+userId +" DOES NOT MEET CRITERIA", font=("Helvetica", 18, "bold"))
error.grid()
userId=""
errorWindow.mainloop()
def show():
window = tkinter.Tk()
window.title("Sign In")
window.geometry("250x100")
signInPrompt = tkinter.Label(master = window, text = "Enter your ID to sign in")
signInPrompt.grid(column=0,row=2)
userEntry = tkinter.Entry(master = window)
userEntry.grid(column=0,row=4)
enterButton = tkinter.Button(master = window, text="Sign in", command=userSign(userEntry))
enterButton.grid(column=0,row=6)
window.mainloop()
How do I get it so that my window works correctly when created inside functions as this module needs to be called by a different, main module.
python tkinter
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
1
Possible duplicate of Why is Button parameter “command” executed when declared?
– fhdrsdg
Nov 22 '18 at 14:13
add a comment |
When I created this module I first made the tkinter window (all of its settings globally) it worked as intended. I could run the module and the window worked, taking the input from the entry field and displaying the welcome or error message. But when I put them into a function, it stopped working correctly, as shown.
How the window looks when created globally, with the button and input working:
https://gyazo.com/ffcb16416b8a971c09bfa60ee9367bbd
How it looks when created inside the function:
https://gyazo.com/c8858a2793befafa41e71d1099f021d3
The error message pops up straight away, then the main window with the entry field but not the button.
Here's the code where I created the window and settings inside a function:
def userSign(userEntry):
userId = userEntry.get()
if userId.isdigit() == True and len(userId) == 4:
welcomeWindow = tkinter.Tk()
welcomeWindow.title("Welcome")
welcomeWindow.geometry("200x50")
welcome = tkinter.Label(master=welcomeWindow, text="Welcome "+userId,font=("Helvetica", 18, "bold"))
welcome.grid()
welcomeWindow.mainloop()
else:
errorWindow = tkinter.Tk()
errorWindow.title("ERROR")
errorWindow.geometry("500x50")
error = tkinter.Label(master=errorWindow, text="ERROR: "+userId +" DOES NOT MEET CRITERIA", font=("Helvetica", 18, "bold"))
error.grid()
userId=""
errorWindow.mainloop()
def show():
window = tkinter.Tk()
window.title("Sign In")
window.geometry("250x100")
signInPrompt = tkinter.Label(master = window, text = "Enter your ID to sign in")
signInPrompt.grid(column=0,row=2)
userEntry = tkinter.Entry(master = window)
userEntry.grid(column=0,row=4)
enterButton = tkinter.Button(master = window, text="Sign in", command=userSign(userEntry))
enterButton.grid(column=0,row=6)
window.mainloop()
How do I get it so that my window works correctly when created inside functions as this module needs to be called by a different, main module.
python tkinter
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
When I created this module I first made the tkinter window (all of its settings globally) it worked as intended. I could run the module and the window worked, taking the input from the entry field and displaying the welcome or error message. But when I put them into a function, it stopped working correctly, as shown.
How the window looks when created globally, with the button and input working:
https://gyazo.com/ffcb16416b8a971c09bfa60ee9367bbd
How it looks when created inside the function:
https://gyazo.com/c8858a2793befafa41e71d1099f021d3
The error message pops up straight away, then the main window with the entry field but not the button.
Here's the code where I created the window and settings inside a function:
def userSign(userEntry):
userId = userEntry.get()
if userId.isdigit() == True and len(userId) == 4:
welcomeWindow = tkinter.Tk()
welcomeWindow.title("Welcome")
welcomeWindow.geometry("200x50")
welcome = tkinter.Label(master=welcomeWindow, text="Welcome "+userId,font=("Helvetica", 18, "bold"))
welcome.grid()
welcomeWindow.mainloop()
else:
errorWindow = tkinter.Tk()
errorWindow.title("ERROR")
errorWindow.geometry("500x50")
error = tkinter.Label(master=errorWindow, text="ERROR: "+userId +" DOES NOT MEET CRITERIA", font=("Helvetica", 18, "bold"))
error.grid()
userId=""
errorWindow.mainloop()
def show():
window = tkinter.Tk()
window.title("Sign In")
window.geometry("250x100")
signInPrompt = tkinter.Label(master = window, text = "Enter your ID to sign in")
signInPrompt.grid(column=0,row=2)
userEntry = tkinter.Entry(master = window)
userEntry.grid(column=0,row=4)
enterButton = tkinter.Button(master = window, text="Sign in", command=userSign(userEntry))
enterButton.grid(column=0,row=6)
window.mainloop()
How do I get it so that my window works correctly when created inside functions as this module needs to be called by a different, main module.
python tkinter
python tkinter
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
asked Nov 22 '18 at 13:52
k.apps1999k.apps1999
33
33
1
Possible duplicate of Why is Button parameter “command” executed when declared?
– fhdrsdg
Nov 22 '18 at 14:13
add a comment |
1
Possible duplicate of Why is Button parameter “command” executed when declared?
– fhdrsdg
Nov 22 '18 at 14:13
1
1
Possible duplicate of Why is Button parameter “command” executed when declared?
– fhdrsdg
Nov 22 '18 at 14:13
Possible duplicate of Why is Button parameter “command” executed when declared?
– fhdrsdg
Nov 22 '18 at 14:13
add a comment |
1 Answer
1
active
oldest
votes
You are creating two instances of Tk() which is a bad idea. Instead use Toplevel() for additional windows.
When you create variables or widgets inside a function the names are in the local scope and not available outside the function. And whan the function ends they will be garbage colletced.
Also, as @fhdrsdg points out, problems in the button command.
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
add a comment |
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1 Answer
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1 Answer
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active
oldest
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oldest
votes
active
oldest
votes
You are creating two instances of Tk() which is a bad idea. Instead use Toplevel() for additional windows.
When you create variables or widgets inside a function the names are in the local scope and not available outside the function. And whan the function ends they will be garbage colletced.
Also, as @fhdrsdg points out, problems in the button command.
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
add a comment |
You are creating two instances of Tk() which is a bad idea. Instead use Toplevel() for additional windows.
When you create variables or widgets inside a function the names are in the local scope and not available outside the function. And whan the function ends they will be garbage colletced.
Also, as @fhdrsdg points out, problems in the button command.
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
add a comment |
You are creating two instances of Tk() which is a bad idea. Instead use Toplevel() for additional windows.
When you create variables or widgets inside a function the names are in the local scope and not available outside the function. And whan the function ends they will be garbage colletced.
Also, as @fhdrsdg points out, problems in the button command.
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
You are creating two instances of Tk() which is a bad idea. Instead use Toplevel() for additional windows.
When you create variables or widgets inside a function the names are in the local scope and not available outside the function. And whan the function ends they will be garbage colletced.
Also, as @fhdrsdg points out, problems in the button command.
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
answered Nov 22 '18 at 14:15
figbeamfigbeam
3,1151311
3,1151311
add a comment |
add a comment |
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1
Possible duplicate of Why is Button parameter “command” executed when declared?
– fhdrsdg
Nov 22 '18 at 14:13