Python Forum

In interactive console session mode Python 3.12 (after entering commands line by line),
the code with the Polish letter "ł" does not open any window.
But just remove the letter 'ł' and everything is OK.
The problem is only in the console.
How to get around this?

# -*- coding: utf-8 -*-
import tkinter as tk
root = tk.Tk()
root.title("title with ł character")
label = tk.Label(root, text="------===== long text, to see ... full title =====---------")
label.pack()
root.mainloop()

After placing the code in the 'test.py' file and running it in CMD: python trest.py it is OK

==== PL ====
W trybie interaktywnej sesji konsoli Python 3.12 (po wpisaniu poleceń linia po linii)
powyższy kod z polską literą 'ł' w tytule okna nie wykonuje się,
ale wystarczy usunąć literę 'ł' i wszystko jest OK.
Po umieszczeniu kodu w pliku 'test.py' i uruchomieniu w CMD: python trest.py też jest Ok
Jak to obejść?

I can't reproduce the bug. The code works for me with Python 3.10 in Linux.

Small correction:
I edit the file as UTF-8 in the Notepad++ editor:

# -*- coding: utf-8 -*-
import tkinter as tk
root = tk.Tk()
# ąĄćĆęĘłŁńŃóÓśŚŻżŹź
root.title("title with ł character")
label = tk.Label(root, text="------===== long text, to see ... full title =====---------")
label.pack()
root.mainloop()

After copying to the clipboard and pasting into the Python 3.12 console (code page => 65001 UTF-8),
the window is empty, without a name, but ... just move the file with the comment one line higher - before 'root',

# -*- coding: utf-8 -*-
import tkinter as tk
# ąĄćĆęĘłŁńŃóÓśŚŻżŹź
root = tk.Tk()
root.title("title with ł character")
label = tk.Label(root, text="------===== long text, to see ... full title =====---------")
label.pack()
root.mainloop()

This is ok

Interesting:
Two lines can be copied:

# -*- coding: utf-8 -*-
import tkinter as tk
root = tk.Tk()

then 'manually' enter the line:

# ąĄćĆęĘłŁńŃóÓśŚŻżŹź

and then paste the rest of the line:

root.title("title with ł character")
label = tk.Label(root, text="------===== long text, to see ... full title =====---------")
label.pack()
root.mainloop()

and... now it's OK

???
Windows clipboard problem?

I don't have any problems using Windows, but it could be that the characters were changed when you posted the code.

I have a lot of problems with character encoding in windows.