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94 lines
2.7 KiB
ReStructuredText
94 lines
2.7 KiB
ReStructuredText
Building Pillow on Windows
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==========================
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.. note:: For most people, the `installation instructions
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<../docs/installation.rst#windows-installation>`_ should
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be sufficient.
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This page will describe a build setup to build Pillow against the
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supported Python versions in 32 and 64-bit modes, using freely
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available Microsoft compilers. This has been developed and tested
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against 64-bit Windows 7 Professional and Windows Server 2012
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64-bit version on Amazon EC2.
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Prerequisites
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-------------
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Extra Build Helpers
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^^^^^^^^^^^^^^^^^^^
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* Powershell (available by default on Windows Server)
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* GitHub client (provides git+bash shell)
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Optional:
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* GPG (for checking signatures) (UNDONE -- Python signature checking)
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Pythons
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^^^^^^^
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The build routines expect Python to be installed at C:\PythonXX for
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32-bit versions or C:\PythonXXx64 for the 64-bit versions.
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Download Python 3.4, install it, and add it to the path. This is the
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Python that we will use to bootstrap the build process. (The download
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routines are using 3 features, and installing 3.4 gives us pip and
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virtualenv as well, reducing the number of packages that we need to
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install.)
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Download the rest of the Pythons by opening a command window, changing
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to the `winbuild` directory, and running `python
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get_pythons.py`.
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UNDONE -- gpg verify the signatures (note that we can download from
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https)
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Run each installer and set the proper path to the installation. Don't
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set any of them as the default Python, or add them to the path.
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Compilers
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^^^^^^^^^
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Download and install:
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* `Microsoft Windows SDK for Windows 7 and .NET Framework
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4 <https://www.microsoft.com/en-us/download/details.aspx?id=8279>`_
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* `CMake-2.8.10.2-win32-x86.exe
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<https://cmake.org/files/v2.8/cmake-2.8.10.2-win32-x86.exe>`_
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The samples and the .NET SDK portions aren't required, just the
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compilers and other tools. UNDONE -- check exact wording.
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Dependencies
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------------
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The script 'build_dep.py' downloads and builds the dependencies. Open
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a command window, change directory into `winbuild` and run `python
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build_dep.py`.
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This will download libjpeg, libtiff, libz, and freetype. It will then
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compile 32 and 64-bit versions of the libraries, with both versions of
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the compilers.
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UNDONE -- lcms fails.
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UNDONE -- webp, jpeg2k not recognized
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Building Pillow
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---------------
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Once the dependencies are built, run `python build.py --clean` to
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build and install Pillow in virtualenvs for each Python
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build. `build.py --wheel` will build wheels instead of
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installing into virtualenvs.
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UNDONE -- suppressed output, what about failures.
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Testing Pillow
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--------------
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Build and install Pillow, then run `python test.py` from the
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`winbuild` directory.
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