How to solve ValueError: bad transparency mask problem in Pillow?

Question

Python

Hi guys, I'm trying to overlay an image on an image, but I get an error: "ValueError: bad transparency mask". Below is the code, please help!!!

img = Image.open('fon.png')
blok = Image.open('ramka1.png')
img.paste(blok, (13, 15),  blok)
img.save("gotov.png")

Answer 1

Apparently, the mask does not have the correct alpha channel. Perhaps it simply does not exist, although it is expected.
try throwing .convert("RGBA") on the overlay image (aka "mask") like this:
blok = Image.open('ramka1.png').convert("RGBA")
if it doesn't help, then in the first line too add
img = Image.open('fon.png').convert("RGBA")
and at the end you may need
img.save("gotov.png", format="png")