Christoph Gohlke

I am almost certain that Pillow and all its C dependencies can be built with the free (and available) Windows SDKs. Visual Studio's IDE is not needed. This might help:...

> I can upload one of these images if it is helpful. Please do.

The ImageMagick output is a little confusing. The first image in the file is a simple 3 samples RGB image with 16 bit per sample , i.e. the `BitsPerSample` tag...

> Do you think you'll be able to make a last set of Windows wheels for our July 1 release? Sure.

From the file name extension, this seems to be an [Aperio](https://openslide.org/formats/aperio/) pyramidal, tiled, JPEG or JPEG 2000 compressed whole-slide image. The largest pyramidal level would be ~49 GB uncompressed. That...

I actually meant to recommend [pyvips](https://pypi.org/project/pyvips/) which is more up to date than openslide-python and uses OpenSlide internally to read whole-slide images. Maybe you could use a higher pyramidal level...

I have no issue loading `100000.tiff` with Pillow 6 on Windows. The question is whether Pillow just quits/segfaults or raises a `MemoryError` in case not enough memory is available.

Besides the maintenance burden, including AVIF would double/triple the size of the Pillow wheels, which might or might not be relevant. I ran into that issue with the [imagecodecs](https://pypi.org/project/imagecodecs/) package,...

> rather than using the internal tiff chunks, it would be possible to map the entire file to one chunk, using the imagecodecs_tiff codec. > Is this currently supported by...

In this case the trailing/inline comment is moved to the wrong line: ```Python a = "".join( ( "", # comment "" if True else "", ) ) ``` becomes ```Python...