Windows cdll.LoadLibrary('libopenslide-0.dll') OSError: [WinError 127] The specified procedure could not be found about openslide-python

[simo1427]

I had a similar issue, where ctypes gave an error stating that the module could not be located, and I found a way around it, but for that I needed to edit openslide/lowlevel.py. I replaced line 41, which currently is _lib = cdll.LoadLibrary('libopenslide-0.dll') with _lib = cdll.LoadLibrary(ctypes.util.find_library("libopenslide-0.dll")), for which I needed to add import ctypes.util as well. Also something important, the path to the openslide binaries needs to be added to PATH. One caveat: on my system all of this ran after I moved the openslide binaries folder to Program Files and then added the path to them to PATH.

Update: After openslide-python version 1.1.2 I noticed that the errror is now at line 43. If the aforementioned fix is not enough, try with from ctypes.uitl import find_library; _lib = cdll.LoadLibrary(find_library("libopenslide-0.dll"))

[dawalisi]

my issue became is
ImportError: attempted relative import with no known parent package

[jxu]

Not the same as openslide/openslide-bin#18 since this issue is error 127 and "procedure"

[folterj]

Issue is still present when using pip install - will this make it into release?

[NeelKanwal]

Now issue is

ModuleNotFoundError: No module named 'ctypes.uitl'

[bgilbert]

This should be fixed by openslide/openslide-bin#81.