For more extensive info, see the Windows build instructions.
See https://github.com/python-pillow/Pillow/issues/553#issuecomment-37877416 and https://github.com/matplotlib/matplotlib/issues/1717#issuecomment-13343859
Works best with Python 3.4, due to virtualenv and pip batteries included. Python3+ required for fetch command.
Check config.py for virtual env paths, suffix for 64-bit releases. Defaults to x64
, set X64_EXT
to change.
When running in CI with one Python per invocation, set the PYTHON
env variable to the Python folder. (e.g. PYTHON
=c:\Python27\
) This overrides the matrix in config.py and will just build and test for the specific Python.
python get_pythons.py
downloads all the Python releases, and their signatures. (Manually) Install in c:\PythonXX[x64]\
.
python build_dep.py
downloads and creates a build script for all the dependencies, in 32 and 64-bit versions, and with both compiler versions.
(in powershell) build_deps.cmd
invokes the dependency build.
python build.py --clean
makes Pillow for the matrix of Pythons.
python test.py
runs the tests on Pillow in all the virtual envs.
Currently working with zlib, libjpeg, freetype, and libtiff on Python 2.7, and 3.4, both 32 and 64-bit, on a local win7 pro machine and appveyor.com
WebP is built, not detected.
LCMS, OpenJPEG and libimagequant are not building.