OSError: cannot open resource

Question

import tkinter as tk  
from tkinter import ttk,font  
from PIL import Image,ImageDraw,ImageFont

root = tk.Tk()

def func_image():  
    image = Image.open(r'E:\side_300.png')  
    font_type_1 = ImageFont.truetype(str(combo.get()),18)
    draw = ImageDraw.Draw(image)  
    draw.text((50,50),text='Hello',fill='red',font=font_type_1)  
    image.show()  

fonts=list(font.families())  
fonts.sort()  
combo = ttk.Combobox(root,value=fonts)    
combo.pack()  

btn = ttk.Button(root,text='Click Me',command=func_image)  
btn.pack()

root.mainloop()

Output

Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\Mevada\AppData\Local\Programs\Python\Python37\lib\tkinter__init__.py", line 1702, in __call__return self.func(*args)
File "test.py", line 9, in func_image
font_type_1 = ImageFont.truetype(str(combo.get()),18)
File "C:\Users\Mevada\AppData\Local\Programs\Python\Python37\lib\site-packages\PIL\ImageFont.py", line 280, in truetype return FreeTypeFont(font, size, index, encoding, layout_engine)
File "C:\Users\Mevada\AppData\Local\Programs\Python\Python37\lib\site-packages\PIL\ImageFont.py", line 145, in __init__layout_engine=layout_engine)
OSError: cannot open resource

Thanks...

Solution

import tkinter as tk  
from tkinter import ttk
from PIL import Image,ImageDraw,ImageFont
import matplotlib.font_manager as fm

root = tk.Tk()

def func_image():  
    image = Image.open(r'E:\side_300.png')  
    font_type_1 = ImageFont.truetype(fm.findfont(fm.FontProperties(family=combo.get())),18)
    draw = ImageDraw.Draw(image)  
    draw.text((50,50),text='Hello',fill='red',font=font_type_1)  
    image.show()  

fonts = list(set([f.name for f in fm.fontManager.ttflist]))
fonts.sort()

combo = ttk.Combobox(root,value=fonts)    
combo.pack()  

btn = ttk.Button(root,text='Click Me',command=func_image)  
btn.pack()

root.mainloop()

Comments

[Bhavesh Mevada]

So, is there any module which helps me to return font file name.

[Bhavesh Mevada]

Yes it is possible.But, I want to provide a combo box for changing the font. Is there any module which helps me to get filename of a font?

[pwxcoo]

@BhaveshMevada you can DIY with os, just open C:\WINDOWS\Fonts path get all filename then you get all available font. You can customize anything for your want after it.

[Rafael Barros]

Wow, congratulations! I looked all over for that solution, but couldn't find it. And, by the way, I've just read your solution and I think you can change these lines so your code becomes more readable: font_type_1 = ImageFont.truetype(fonts[combo.get()],18), fonts = dict([(f.name,f.fname) for f in fm.fontManager.ttflist]) and combo = ttk.Combobox(root,value=sorted(fonts.keys()))

[Bhavesh Mevada]

@RafaelBarros Thanks for your suggestion.

[Rafael Barros]

I forgot to mention to remove this line fonts.sort() in the suggestion.

[Bhavesh Mevada]

@RafaelBarros I did it :)