Unable to Load an Image from an URL at TKinter

Question

My goal is to display an JPG image from an URL using tkinter python.

This is the stackoverflow link that I used as a reference. But when I try to run the code, I have received a bunch of error such as:

KeyError: b'R0l.......
AttributeError: 'PhotoImage' object has no attribute '_PhotoImage__photo'

Does anyone have the solution to this?

This is the code:

import tkinter as tk
from PIL import Image, ImageTk
from urllib.request import urlopen
import base64

root = tk.Tk()

URL = "http://www.universeofsymbolism.com/images/ram-spirit-animal.jpg"
u = urlopen(URL)
raw_data = u.read()
u.close()


b64_data = base64.encodestring(raw_data)
photo = ImageTk.PhotoImage(b64_data)

label = tk.Label(image=photo)
label.image = photo
label.pack()

root.mainloop()

I can't get your example to work for me, but try specifying that you're passing in the data parameter with ImageTk.PhotoImage(data=b64_data). — Hobbes
– Hobbes, Commented Aug 9, 2016 at 16:56
@Hobbes: I add the 'data' parameter and the first error (KeyError) disappears. But then a new error appears (OSError: cannot identify image file <_io.BytesIO object at 0x104deb620>) and the AttributeError: 'PhotoImage' object has no attribute '_PhotoImage__photo' is still there. — Fxs7576
– Fxs7576, Commented Aug 9, 2016 at 17:04

Hobbes · Accepted Answer · 2016-08-09 21:01:56Z

3

The first error is not specifying the data parameter within ImageTk.PhotoImage(data=b64_data). However, I'm unsure why PhotoImage is unable to read base64 data.

A workaround would be to use BytesIO from the io module. You can pass in the raw data you read from the image into a BytesIO, open it in Image and then pass that into PhotoImage.

I found the code for opening the image from here.

import tkinter as tk
from PIL import Image, ImageTk
from urllib2 import urlopen
from io import BytesIO

root = tk.Tk()

URL = "http://www.universeofsymbolism.com/images/ram-spirit-animal.jpg"
u = urlopen(URL)
raw_data = u.read()
u.close()

im = Image.open(BytesIO(raw_data))
photo = ImageTk.PhotoImage(im)

label = tk.Label(image=photo)
label.image = photo
label.pack()

root.mainloop()

If anybody has a better answer as to why the encoding fails, it would be a more appropriate answer to this question.

edited Aug 9, 2016 at 21:01

answered Aug 9, 2016 at 17:31

Hobbes

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2 Comments

Fxs7576 Over a year ago

Your code works only if I change 'StringIO' to 'BytesIO'. Thank you very much for this workaround solution.

Hobbes Over a year ago

BytesIO makes a lot more sense in this case. I've edited to reflect that.

PrOF · Accepted Answer · 2021-10-17 10:52:48Z

3

Very similar but easier than Hobbes' answer, you can directly use the data parameter in the ImageTk.PhotoImage constructor:

import tkinter as tk
from PIL import Image, ImageTk
from urllib.request import urlopen

root = tk.Tk()

URL = "http://www.universeofsymbolism.com/images/ram-spirit-animal.jpg"
u = urlopen(URL)
raw_data = u.read()
u.close()

photo = ImageTk.PhotoImage(data=raw_data) # <-----

label = tk.Label(image=photo)
label.image = photo
label.pack()

root.mainloop()

answered Oct 17, 2021 at 10:52

PrOF

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