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Libpng warning: interlace handling should be turned on when using png_read_image

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Problem :

I am trying to use the PyGame for Python, and I have been receiving the below warning while trying to load .png images with pygame.image.load:

Libpng warning: Interlace handling should be turned on when using png_read_image

It is not affecting the program, but it has become very annoying. I have tried researching the web for the answer to no avail.

Please Note: I am currently using 32 bit Python 3.3 with the PyGame 1.9.2

Any pointers as to how can I fix the warning?

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1 Answer

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Solution :


I also had the same problem in recent past. It seems to be some bug of the older libpng versions (refer http://sourceforge.net/p/libpng/bugs/165/ for the details).

It should be already fixed for you, but not in my current setup: win32 + python 2.7.3.

So as the workaround I just converted the png-24 images to png-8 in the Photoshop and warning message has disappeared.

OR


I can also confirm that I was also having this same issue using the Pygame 1.9.6 with Python 3.7.4.

But I was able to fix it by just downloading Python 3.8 from https://www.python.org/ and after that installing Pygame 2.0.0.dev6 by doing the quick

python -m pip install Pygame>=2.0.0.dev6

You will be able to get it to work with the version in between the ones I mentioned.

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