Why is error 0x7f?

[xyuechen]

I'm trying to use pyvips but am having trouble running the sample. And my system is Windows 10.

When I "pip install pyvips" and "import pyvips", I get an error that says missing files, and I found the answer that download "vips-devs".
Then I tried to add the environment variable and set “os[‘PATH’]” like I searched for, and next thing I know, the import works!

However, when I run the code, get an error
" File "D:\happ\happy-main\happy\microscopefile\reader.py", line 10, in
import pyvips
File "C:\Users\Administrator\Anaconda3\envs\happy1\lib\site-packages\pyvips_init_.py", line 73, in
vips_lib = ffi.dlopen(_vips_libname)
File "C:\Users\Administrator\Anaconda3\envs\happy1\lib\site-packages\cffi\api.py", line 150, in dlopen
lib, function_cache = _make_ffi_library(self, name, flags)
File "C:\Users\Administrator\Anaconda3\envs\happy1\lib\site-packages\cffi\api.py", line 832, in _make_ffi_library
backendlib = _load_backend_lib(backend, libname, flags)
File "C:\Users\Administrator\Anaconda3\envs\happy1\lib\site-packages\cffi\api.py", line 828, in _load_backend_lib
return backend.load_library(path, flags)
OSError: cannot load library 'D:/happips-dev-8.10/bin\libvips-42.dll': error 0x7f
python-BaseException"

Does the error occur in pyvips? Then I tried to rebuild my environment using Anaconda, but it doesn't work.

Thank you for your help with this! I look forward to using pyvips in python!

[jcupitt]

Hello @xyuechen,

I think that error means there's a 32/64-bit mixup.

I would install a 64-bit python from python.org and the 64-bit libvips binary. You can also try with anaconda and their libvips binary, but I've not tested that combination.