I don't know what is problem in this code .it runs perfectly
in script .but after closing the program it shows this error
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\python3.9\lib\tkinter\__init__.py", line 1885, in __call__
return self.func(*args)
File "C:\Users\NK Infosystem\PycharmProjects\password tkinter\main.py", line 225, in login_in
if uni_username.get() == u_name and uni_pass.get() == u_pass:
File "C:\python3.9\lib\tkinter\__init__.py", line 3040, in get
return self.tk.call(self._w, 'get')
_tkinter.TclError: invalid command name ".!entry"
and 225 line is this
cursr.execute("SELECT rowid ,* FROM usernameandpassword")
user_and_pass = (cursr.fetchall())
for users in user_and_pass:
u_name = (users[1])
u_pass = (users[2])
if uni_username.get() == u_name and uni_pass.get() == u_pass:
show_new_user_window()
uni_username.delete(0, "end")
uni_pass.delete(0, "end")
save_uni_pass_and_name = Button(mainscreen, text="Save", command=save_uni_ones, padx=30, bg="blue2", fg="gold").place(
x=113, y=170, anchor="c")
login_butt = Button(mainscreen, text="Login", padx=30, command=login_in, bg="blue2", fg="gold").place(x=213, y=170,
anchor="c")
connection.commit()
mainscreen.mainloop()
full code is at patch1 branch
https://github.com/aadityabaj/python-projects.git
It is actually not a problem: The error says that python tries to get the input of an Entry that doesn't exist (anymore). When you close the window, you destroy also the Entry. So actually I think It's nothing to worry about.
Tip:
when you try to add a mainscreen.quit() command.
I've seen this problem before and I hope it's helping you.
update 1
you could make a button to quit and add it to a function or just add it to some hotkeys or to an if-statement.
if my answer is helpful, please vote it up, because at 50 points of the reputation I can use comments and that's very handy. I've now 40
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I'm trying to make a GUI for my app, but I have hit a roadblock when trying to make a settings Toplevel. This Toplevel comes with tabs and setting buttons that start at the same state their respective settings are stored as from last settings/defaults.
Here is the exception I am currently getting:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Program Files\Python39\lib\tkinter\__init__.py", line 1885, in __call__
return self.func(*args)
File "KMIU 4\kmiu_dv7.pyw", line 38, in settings
sett.display(main)
File "KMIU 4\bk\settings.py", line 54, in __init__
self.windowsettings(tab2)
File "KMIU 4\bk\settings.py", line 23, in windowsettings
if settings['Fullscreen'].get(): fs_butt.select()
AttributeError: 'Checkbutton' object has no attribute 'select'
Here is the bit of code that is causing the issue:
def windowsettings(self, tab):
global settings
text = Label(tab, text ="sample text")
text.grid(columnspan = 2)
fs_butt = Checkbutton(
tab,
text="Fullscreen",
command=lambda: settings['Fullscreen'].set(not settings['Fullscreen'].get()))
print(settings)
fs_butt.grid(row=1)
if settings['Fullscreen'].get(): fs_butt.select()
For me in my code with tk.Checkbutton, select() works, and ive seen some other people having the same issue, not sure whats causing it(maybe your using ttk.Checkbutton), but here is a way around:
First assign a BooleanVar() to your checkbutton:
var = BooleanVar()
....
fs_butt = Checkbutton(tab,variable=var,......) #same for ttk.Checkbutton(..) too
Now to set the value of the variable to True, to select, and False to deselect:
if settings['Fullscreen'].get():
var.set(True)
Or maybe your using ttk.Checkbutton which does not have select() and deselect()
I'm trying to make a text game in python and i'm trying to debug the game right now.
I think this code I'm writing is supposed to type out the letters/characters one by one and make a typing effect.
here it is:
def setup_game():
### BACKSTORY TELLING
backstory = "something something boring backstory"
typeout(backstory)
def typeout(x):
time.sleep(0.03)
sys.stdout.write(char)
sys.stdout.flush()
option = input('> ')
if option.lower() == '> ok':
title_screen()
else:
print("please try again\n")
option = input('> ')
#Actual game
def start_game():
print_location()
main_game_loop()
setup_game()
but whatever i do it always gives me an error and i don't know how to fix it.
here it is:
Traceback (most recent call last):
File "textgame.py", line 612, in <module>
setup_game()
File "textgame.py", line 600, in setup_game
typeout(backstory)
File "textgame.py", line 604, in typeout
sys.stdout.write(char)
NameError: name 'char' is not defined
all the lines referenced in the error are in the code from the top.
I did find another post about the:
time.sleep(0.03)
sys.stdout.write(char)
sys.stdout.flush()
part and i tried doing what the answer said but instead it just gave me a different error which is what i have now.
help would be appreciated, thanks
You need to do something like:
sys.stdout.write(x)
Because char is not defined in your code. You're passing x to the function.
I am beginning to get the hang of tkinter, but I have run into a problem. I want to create a label that displays an appropriate message according to the values of an Entry field, checked by a button. When this is used repeatedly, using just the tk.Label command will just overlay on top of the existing label, So I am trying to assign the label to a variable:
messagebox=tk.Label(root2,text=" ",font(style,font).grid(row=1,column=0,columnspan = 50))
I want to later on use the .configure command to change this text, However I get this error:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\tkinter\__init__.py", line 1699, in __call__
return self.func(*args)
File "C:[CENSORED BY POSTER (me), It was just the file directory]", line 84, in Checkpass
messagebox = tk.Label(root2,text=" ",font=(style,font).grid(row=1,column=0,columnspan = 50))
AttributeError: 'tuple' object has no attribute 'grid'
Can anyone please tell me what I am doing wrong and explain why it wont work.
Thank you,
Tava
Check your parentheses at font(style,font).grid. Probably should be:
messagebox=tk.Label(root2,text=" ",font(style,font)).grid(row=1,column=0,columnspan = 50)
But I personally recommend split it into two lines for the sake of readability:
messagebox = tk.Label(root2, text=" ", font(style, font))
messagebox.grid(row=1, column=0, columnspan = 50)
So far in a program I have been writing, I have used basic tkinter for widgets. However, after some Googling, I found out about ttk and its themed widgets.
According to the documentation on the Python Docs site, I only needed to add from tkinter.ttk import * to make use of the ttk widgets without needing to change any code, so it seemed worth it to me.
Of course, the only thing that wouldn't work is the -bg flag. However, when I try and use the ttk styling, I get:
IndexError: list index out of range
of all things, though I wrote nothing in code referred to a range.
This is the particular section of code:
style = Style()
# stuff
style.map("rbstyle", background="grey")
# stuff
crBox = Label(win, width=6, textvariable=cr,
state='normal', relief='sunk', style="rbstyle")
and this is the output:
Traceback (most recent call last):
File "C:\Users\James\Google Drive\Queens' Athletics\window.py", line 83, in <module>
style.map("rbstyle", background="grey")
File "C:\Python34\lib\tkinter\ttk.py", line 402, in map
self.tk.call(self._name, "map", style, *(_format_mapdict(kw))))
File "C:\Python34\lib\tkinter\ttk.py", line 111, in _format_mapdict
_format_optvalue(_mapdict_values(value), script)))
File "C:\Python34\lib\tkinter\ttk.py", line 85, in _mapdict_values
state[0] # raise IndexError if empty
IndexError: list index out of range
>>>
Why am I having this error? I followed exactly what it said on Python Docs.
Despite all attempts, I cannot seem to get Entry().get() to assign a string in an Entry window. Here's a code snippet:
Itx_bcn_ent = Entry(win).grid(row=1,column=1)
I define a button to call a function:
btn = Button(win,text="Run",command=getnums).grid(row=5,column=3,padx=100)
Here's the function:
def getnums():
Itx_bcn = Itx_bcn_ent.get()
When I run the script, I get the following error:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python34\lib\tkinter\__init__.py", line 1482, in __call__
return self.func(*args)
File "C:\Python34\voltage_substate_GUI.py", line 7, in getnums
Itx_bcn = Itx_bcn_ent.get()
AttributeError: 'NoneType' object has no attribute 'get'
I've seen the construct to use a Class StringVar() and the option "textvariable=" with the Entry() object, however doing this seems overly complicated as it just creates an additional set of variables between what's in the Entry window and the variable I am trying to assign.
Any thoughts on this?
Entry.grid() returns None, so when you do something = Entry(root).grid(), you're getting something=None.
This isn't a problem until you try to use that thing! That's why you're getting a 'NoneType' object has no attribute 'get' error.
Itx_bcn_ent = Entry(win)
Itx_bcn_ent.grid(row=1,column=1)
Now your button works :), though you have the same problem with your btn = line. I've yet to have to reuse that assignment, so maybe just drop it?
Button(win,text="Run",command=getnums).grid(row=5,column=3,padx=100)