I'm currently trying to write in a few basic user input boxes using the tkinter module in Python 3.6 (via Spyder). I can confirm that the module loads, and that the option to select simpledialog comes up, but I keep getting the following error:
AttributeError: module 'tkinter' has no attribute 'simpledialog'
Image of tkinter simpledialog
I've tried to look for other options, but other user input options do not seem to work on my Python interface. It either crashes, or the data isn't structured properly.
Interestingly enough, in the past, I've done similar things in Python with no errors, but this keeps coming up with this particular programming piece.
import tkinter as tk
import pyodbc as py
py.pooling = False
## INPUT YOUR USER ID AND PASSWORD AND DECLARE YOUR CONNECTION
## THE DIALOG BOXES MAY POP OPEN ON ANOTHER SCREEN
## THE PASSWORD INPUT IS MASKED AND WILL NOT SHOW IN THE
## VARIABLE EXPLORER
ID = tk.simpledialog.askstring("Please input your username.","Username: ")
PW = tk.simpledialog.askstring("Please input your password.",
"Password: ", show='*')
CONN = tk.simpledialog.askstring("Please input your connection.",
"Connection: ")
My expected results are that a popup window will appear and that I'll be able to get the user information I need to maintain a stable connection to the server I'm using.
Thank you in advance for your advice!
simpledialog is not in tkinter but in tkinter.simpledialog and you have to import it
import tkinter as tk
import tkinter.simpledialog
root = tk.Tk() # create main window
#root.iconify() # minimize main window
root.withdraw() # hide main window
answer = tkinter.simpledialog.askstring("Question", 'Your name:')
print(answer)
#root.destroy() # should work without it
#root.mainloop() # should work without it
See tkinter modules
import tkinter as tk
from tkinter import simpledialog
root = tk.Tk()
ID = simpledialog.askstring("Please input your username.", "Username: ", parent=root)
root.mainloop()
This will keep the popup within the parent window and visible.
Related
I am new to tkinter
import datetime as dt
from tkinter import *
from tkinter import messagebox
dt1 = dt.datetime.now().strftime("%Y""%m""%d")
time1 = dt.datetime.now().strftime('%H:%M:%S')
msg1= dt1+" "+time1+ " Test Message XXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
master = Tk()
top = Tk()
top.geometry("100x100")
messagebox.showinfo("information", msg1)
top.mainloop()
I have basically 3 issues in this basic code
It is creating additional blank windows along with my message which is not required. How to avoid this ?
I want to display my message into single line how can i do this ?
How to change font and color of this message ?
I have a program that needs to display graphical error messages to users. It is a tkinter GUI, so I am using tkinter.messagebox.showerror
When I call showerror, it shows the error, but also creates a blank "tk" window, the kind created when an instance of the Tk class is called, like root = Tk().
from tkinter.messagebox import showerror
showerror(title = "Error", message = "Something bad happened")
Produces
How can I make this blank window not appear?
from Tkinter import *
from tkMessageBox import showerror
Tk().withdraw()
showerror(title = "Error", message = "Something bad happened")
Calling Tk().withdraw() before showing the error message will hide the root window.
Note: from tkinter import * for Python 3.x
As explained in this answer, Tkinter requires a root window before we create any more widgets/dialogs. If there is no root window, tkinter creates one. So, to make the blank window disappear, first we need to create a root window ourselves, hide it and destroy it once your dialog action is complete. Sample code below
from tkinter import Tk
from tkinter.messagebox import showerror
root = Tk()
root.withdraw()
showerror(title = "Error", message = "Something bad happened")
root.destroy()
Note: This is applicable when you just have to display a dialog and no other window exists.
In my script I sometimes call my ErrorWindow class to show an error message. This creates an empty tkinter window and a messagebox error window. I either only want the messagebox window, or I want the tkinter window to close automatically when I close the error window.
I've tried two pieces of code:
class ErrorWindow:
def __init__(self,error_message):
self.error_window = tk.Tk()
messagebox.showerror("ERROR",error_message,command=self.close)
self.error_window.protocol("WM_DELETE_WINDOW", self.close)
self.error_window.mainloop()
def close(self):
self.error_window.destroy()
.
class ErrorWindow:
def __init__(self,error_message):
messagebox.showerror("ERROR",error_message) #automatically creates a tk window too
But even with the second one, the tkinter window remains after I close the messagebox.
How can I program the class so that I only have to press a button (either Ok or the X in the top right of a window) once to close all windows (whether that is one or two)?
You need to withdraw the main window:
class ErrorWindow:
def __init__(self,error_message):
if not tk._default_root: # check for existing Tk instance
error_window = tk.Tk()
error_window.withdraw()
messagebox.showerror("ERROR",error_message)
This has no business as a class. You should remake this a simple function.
You did not specify whether there is just one place or multiple places where you might want want an error message. If the latter, you can create and withdraw a tk window just once. I believe a wrapper function rather than class should be sufficient for your purposes.
import tkinter as tk
from tkinter import messagebox
root = tk.Tk()
# consider placing root to control where messagebox appears
root.withdraw()
def showerror(message):
messagebox.showerror('XYZ ERROR', message, parent=root)
To avoid possible problems, I always use an explicit master or parent for everything and never depend on _default_root.
The small function below will do the job. By setting the type you can choose for: info, warning or error message box, the default is 'Info'. You can set also the timeout, the default is 2.5 seconds.
def showMessage(message, type='info', timeout=2500):
import tkinter as tk
from tkinter import messagebox as msgb
root = tk.Tk()
root.withdraw()
try:
root.after(timeout, root.destroy)
if type == 'info':
msgb.showinfo('Info', message, master=root)
elif type == 'warning':
msgb.showwarning('Warning', message, master=root)
elif type == 'error':
msgb.showerror('Error', message, master=root)
except:
pass
Call the function as follow:
For message type 'Info' and timeout of 2.5 seconds:
showMessage('Your message')
Or by your own settings for type message 'Error' and timeout 4 seconds:
showMessage('Your message', type='error', timeout=4000)
We're trying to store a directory path in a variable using Tkinter's tkFileDialog, and it won't work (details later).
from Tkinter import *
import os
from tkFileDialog import askopenfilename, askdirectory
# Create the window
root = Tk()
# Application title & size
root.title("Title")
root.geometry("1000x600")
# Creating frame to add things to
app = Frame(root)
app.grid() # Adding app frame to grid
# Method that opens file chooser
# Gets used when button is clicked (command)
def openFileBox():
directoryPicked = tkFileDialog.askdirectory()
#easygui.fileopenbox()
for filePicked in os.listdir(directoryPicked):
if filePicked.lower().endswith(".jpg") or filePicked.lower().endswith(".gif") or filePicked.lower().endswith(".png"):
print filePicked
#TODO: add button 'Select Folder'
loaderButton = Button(app)
loaderButton["text"] = "Select Folder"
loaderButton["command"] = openFileBox
loaderButton.grid()
# Tells the program to run everything above
root.mainloop()
So what needs to happen? The way we see it (and we're beginners looking for feedback here), it should be running the openFileBox method when the button is pressed. When the method runs, it should store a selected directory to directoryPicked and print it to the console just to be sure it's working, but when we press the button it simply says 'tkFileDialog' is not defined.
Any thoughts?
It's because you're only importing askopenfilename, askdirectory from tkFileDialog you're not actually importing tkFileDialog itself
So you need to change directoryPicked = tkFileDialog.askdirectory() to directoryPicked = askdirectory()
I have a program that needs to display graphical error messages to users. It is a tkinter GUI, so I am using tkinter.messagebox.showerror
When I call showerror, it shows the error, but also creates a blank "tk" window, the kind created when an instance of the Tk class is called, like root = Tk().
from tkinter.messagebox import showerror
showerror(title = "Error", message = "Something bad happened")
Produces
How can I make this blank window not appear?
from Tkinter import *
from tkMessageBox import showerror
Tk().withdraw()
showerror(title = "Error", message = "Something bad happened")
Calling Tk().withdraw() before showing the error message will hide the root window.
Note: from tkinter import * for Python 3.x
As explained in this answer, Tkinter requires a root window before we create any more widgets/dialogs. If there is no root window, tkinter creates one. So, to make the blank window disappear, first we need to create a root window ourselves, hide it and destroy it once your dialog action is complete. Sample code below
from tkinter import Tk
from tkinter.messagebox import showerror
root = Tk()
root.withdraw()
showerror(title = "Error", message = "Something bad happened")
root.destroy()
Note: This is applicable when you just have to display a dialog and no other window exists.