CODEWITHSUNDEEP
pythonpython-3.xtkinter
user4261180
user4261180

Reputation: 171

Cannot convert base 64 enocded graphic into canvas background

I would like to decode a string in base64 into an image for my canvas background. I know that I can create an empty image file and write to it using this code:

fh = open("background.png", "wb")
fh.write(base64.b64decode(background_image.background_image))
fh.close()

But I want to insert the image directly into the canvas background wihout creating any extra files like so:

background_image = base64.b64decode(background_image.background_image)
background_image = ImageTk.PhotoImage(file=background_image)
canvas.create_image(0, 0, image=background_image, anchor=NW)

But I get the following error. 

AtrributeError: 'PhotoImage' object has no attribute '_PhotoImage__photo'

Upvotes: 0

Views: 129

Answers (1)

user4171906
user4171906

Reputation:

If you are using data in memory, instead of a file, then it should be data=background_image

try:
    import Tkinter as tk     ## Python 2.x
except ImportError:
    import tkinter as tk     ## Python 3.x


grape_gif='''\
R0lGODlhIAAgALMAAAAAAAAAgHCAkC6LV76+vvXeswD/ANzc3DLNMubm+v/6zS9PT6Ai8P8A////
/////yH5BAEAAAkALAAAAAAgACAAAAS00MlJq7046803AF3ofAYYfh8GIEvpoUZcmtOKAO5rLMva
0rYVKqX5IEq3XDAZo1GGiOhw5rtJc09cVGo7orYwYtYo3d4+DBxJWuSCAQ30+vNTGcxnOIARj3eT
YhJDQ3woDGl7foNiKBV7aYeEkHEignKFkk4ciYaImJqbkZ+PjZUjaJOElKanqJyRrJyZgSKkokOs
NYa2q7mcirC5I5FofsK6hcHHgsSgx4a9yzXK0rrV19gRADs=
'''
master=tk.Tk()
master.geometry("100x100")
photo=tk.PhotoImage(data=grape_gif)

canvas=tk.Canvas(master)
canvas.grid()
canvas.create_image(0, 0, image=photo, anchor="nw")

master.mainloop()

Upvotes: 1

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