This page is in progress
This page describes how to build python Pillow package from source.
https://github.com/python-pillow/Pillow
Prerequisites
Visual Studio 2019 or later installation
Vcpkg Installation
Install required libraries
Install main dependencies using vcpkg
vcpkg install zlib libwebp lcms freetype libjpeg-turbo libpng tiff --triplet=arm64-windows
Pillow supports other image formats too. You need to install the appropriate library and add it to your PATH for pillow to include them.
Add installed library to the LIB and INCLUDE environment variables
This has to be done for all installed libraries.
E.g: to add freetype to env. from powershell
$env:INCLUDE+=";C:\vcpkg\packages\freetype_arm64-windows\include" $env:LIB+=";C:\vcpkg\packages\freetype_arm64-windows\lib"
Install Pillow
pip install pillow --no-build-isolation
Copy library DLLs
If you try to run pillow you might get a DLL import error as Python cannot load thrid party library DLLs we installed using vcpkg. We will have to manually copy all of the DLLs to pillow installation directory.
E.g:
cp C:\vcpkg\packages\zlib_arm64-windows\bin\*.dll C:\venv_pillow\lib\site-packages\PIL\
0 Comments