Greek letters with .readline() and tkinter

Greek letters with .readline() and tkinter - Printable Version

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Greek letters with .readline() and tkinter - KinkgOfKeks - Mar-22-2023

I am currenty working on a projekt with tkinter(Python 3.11.2), for wich I have to use the greek alphabet. The Problem is, that if I try to write greek letters with an accent(for example ώ, ὠ or ὡ) into an input box witch I have created with

tk.entry()

, it shows a questionmark instead of the letter.
Also if I try to read data from a seperate .txt file with

.read

, I get a combination of some special characters.
As an example:
ω becomes Ï‰
α becomes Î±

Is there a way to solve these Problems?

RE: Greek letters with .readline() and tkinter - deanhystad - Mar-22-2023

What is your font? Does it have the characters you want?

RE: Greek letters with .readline() and tkinter - KinkgOfKeks - Mar-22-2023

(Mar-22-2023, 12:55 PM)deanhystad Wrote: What is your font? Does it have the characters you want?

I think so since I am sbled to print them just fine. But I am quite new to python so if u need more/other Information, please let me know.

RE: Greek letters with .readline() and tkinter - deanhystad - Mar-22-2023

The font used for printing to the console was set by your shell. It is not the font used by tk.

import tkinter as tk

root = tk.Tk()
label = tk.Label(root)
entry = tk.Entry(root)
print("Label font", label["font"])
print("Entry font", label["font"])

Output:Label font TkDefaultFont
Entry font TkTextFont

My guess is neither TkDefaultFont nor TkTextFont contain the characters you need. Look for fonts on your computer and find a font that does. Then set that as the font for your text widgets.

import tkinter as tk

root = tk.Tk()
label = tk.Label(root, font=("Times",))
entry = tk.Entry(root, font=("Helvetica",))
print("Label font", label["font"])
print("Entry font", entry["font"])

Output:Label font Times
Entry font Helvetica

RE: Greek letters with .readline() and tkinter - KinkgOfKeks - Mar-22-2023

I have set the font to one with the letters in it. I am now abled to display al the letters I need on a label. So thanks for that.
But the entry(with the same font as the lables) still writes a questionmark instead of some letters.

RE: Greek letters with .readline() and tkinter - deanhystad - Mar-22-2023

These appear to be related to your issue:

https://stackoverflow.com/questions/63542060/typing-greek-characters-in-tkinter
https://www.appsloveworld.com/coding/python3x/43/typing-greek-characters-in-tkinter

How are you typing? Post your code.

RE: Greek letters with .readline() and tkinter - KinkgOfKeks - Mar-24-2023

I was abled to solve the first problem with the method from your Links.
But if i use following code to red a .txt file, I still get a combination of special characters as output instead of the greek letters.

with open('file.txt') as f:
    print(f.readlines())

Also if there are some letters (as example ρ or Ν) in the file, I get following Error:

Error:Traceback (most recent call last):
  File "C:\Users\tschr\..Dokummente\KZO_Wetzikon\Griechisch\Dictionairy\Converter.py", line 2, in <module>
    print(voki.readlines())
          ^^^^^^^^^^^^^^^^
  File "C:\Users\tschr\AppData\Local\Programs\Python\Python311\Lib\encodings\cp1252.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'charmap' codec can't decode byte 0x81 in position 1: character maps to <undefined>

Do you also have an idea why this happens?

RE: Greek letters with .readline() and tkinter - deanhystad - Mar-24-2023

Sound like you need to specify an encoding for the file when you open it. Whatever windows is using is not doing a good job identifying some of the characters.