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Pillow/docs/installation.rst
Hugo van Kemenade d40211254c
Merge pull request #5361 from radarhere/alpine 
Document prerequisites and Python development libraries for Alpine
2021-03-25 20:33:41 +02:00

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Installation
============
Warnings
--------
.. warning:: Pillow and PIL cannot co-exist in the same environment. Before installing Pillow, please uninstall PIL.
.. warning:: Pillow >= 1.0 no longer supports "import Image". Please use "from PIL import Image" instead.
.. warning:: Pillow >= 2.1.0 no longer supports "import _imaging". Please use "from PIL.Image import core as _imaging" instead.
Python Support
--------------
Pillow supports these Python versions.
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| **Python** |**3.9**|**3.8**|**3.7**|**3.6**|**3.5**|**3.4**|**3.3**|**3.2**|**2.7**|**2.6**|**2.5**|**2.4**|
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow >= 8.0 | Yes | Yes | Yes | Yes | | | | | | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 7.0 - 7.2 | | Yes | Yes | Yes | Yes | | | | | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 6.2.1 - 6.2.2 | | Yes | Yes | Yes | Yes | | | | Yes | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 6.0 - 6.2.0 | | | Yes | Yes | Yes | | | | Yes | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 5.2 - 5.4 | | | Yes | Yes | Yes | Yes | | | Yes | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 5.0 - 5.1 | | | | Yes | Yes | Yes | | | Yes | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 4 | | | | Yes | Yes | Yes | Yes | | Yes | | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow 2 - 3 | | | | | Yes | Yes | Yes | Yes | Yes | Yes | | |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Pillow < 2 | | | | | | | | | Yes | Yes | Yes | Yes |
+----------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
Basic Installation
------------------
.. note::
The following instructions will install Pillow with support for
most common image formats. See :ref:`external-libraries` for a
full list of external libraries supported.
Install Pillow with :command:`pip`::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
Windows Installation
^^^^^^^^^^^^^^^^^^^^
We provide Pillow binaries for Windows compiled for the matrix of
supported Pythons in both 32 and 64-bit versions in the wheel format.
These binaries have all of the optional libraries included except
for raqm, libimagequant, and libxcb::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
To install Pillow in MSYS2, see `Building on Windows using MSYS2/MinGW`_.
macOS Installation
^^^^^^^^^^^^^^^^^^
We provide binaries for macOS for each of the supported Python
versions in the wheel format. These include support for all optional
libraries except libimagequant and libxcb. Raqm support requires
libraqm, fribidi, and harfbuzz to be installed separately::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
Linux Installation
^^^^^^^^^^^^^^^^^^
We provide binaries for Linux for each of the supported Python
versions in the manylinux wheel format. These include support for all
optional libraries except libimagequant. Raqm support requires
libraqm, fribidi, and harfbuzz to be installed separately::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
Most major Linux distributions, including Fedora, Ubuntu and ArchLinux
also include Pillow in packages that previously contained PIL e.g.
``python-imaging``. Debian splits it into two packages, ``python3-pil``
and ``python3-pil.imagetk``.
FreeBSD Installation
^^^^^^^^^^^^^^^^^^^^
Pillow can be installed on FreeBSD via the official Ports or Packages systems:
**Ports**::
cd /usr/ports/graphics/py-pillow && make install clean
**Packages**::
pkg install py36-pillow
.. note::
The `Pillow FreeBSD port
<https://www.freshports.org/graphics/py-pillow/>`_ and packages
are tested by the ports team with all supported FreeBSD versions.
Building From Source
--------------------
Download and extract the `compressed archive from PyPI`_.
.. _compressed archive from PyPI: https://pypi.org/project/Pillow/
.. _external-libraries:
External Libraries
^^^^^^^^^^^^^^^^^^
.. note::
You **do not need to install all supported external libraries** to
use Pillow's basic features. **Zlib** and **libjpeg** are required
by default.
.. note::
There are Dockerfiles in our `Docker images repo
<https://github.com/python-pillow/docker-images>`_ to install the
dependencies for some operating systems.
Many of Pillow's features require external libraries:
* **libjpeg** provides JPEG functionality.
* Pillow has been tested with libjpeg versions **6b**, **8**, **9-9d** and
libjpeg-turbo version **8**.
* Starting with Pillow 3.0.0, libjpeg is required by default, but
may be disabled with the ``--disable-jpeg`` flag.
* **zlib** provides access to compressed PNGs
* Starting with Pillow 3.0.0, zlib is required by default, but may
be disabled with the ``--disable-zlib`` flag.
* **libtiff** provides compressed TIFF functionality
* Pillow has been tested with libtiff versions **3.x** and **4.0-4.1**
* **libfreetype** provides type related services
* **littlecms** provides color management
* Pillow version 2.2.1 and below uses liblcms1, Pillow 2.3.0 and
above uses liblcms2. Tested with **1.19** and **2.7-2.12**.
* **libwebp** provides the WebP format.
* Pillow has been tested with version **0.1.3**, which does not read
transparent WebP files. Versions **0.3.0** and above support
transparency.
* **tcl/tk** provides support for tkinter bitmap and photo images.
* **openjpeg** provides JPEG 2000 functionality.
* Pillow has been tested with openjpeg **2.0.0**, **2.1.0**, **2.3.1** and **2.4.0**.
* Pillow does **not** support the earlier **1.5** series which ships
with Debian Jessie.
* **libimagequant** provides improved color quantization
* Pillow has been tested with libimagequant **2.6-2.14.1**
* Libimagequant is licensed GPLv3, which is more restrictive than
the Pillow license, therefore we will not be distributing binaries
with libimagequant support enabled.
* **libraqm** provides complex text layout support.
* libraqm provides bidirectional text support (using FriBiDi),
shaping (using HarfBuzz), and proper script itemization. As a
result, Raqm can support most writing systems covered by Unicode.
* libraqm depends on the following libraries: FreeType, HarfBuzz,
FriBiDi, make sure that you install them before installing libraqm
if not available as package in your system.
* setting text direction or font features is not supported without
libraqm.
* libraqm is dynamically loaded in Pillow 5.0.0 and above, so support
is available if all the libraries are installed.
* Windows support: Raqm is not included in prebuilt wheels
* **libxcb** provides X11 screengrab support.
Once you have installed the prerequisites, run::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
If the prerequisites are installed in the standard library locations
for your machine (e.g. :file:`/usr` or :file:`/usr/local`), no
additional configuration should be required. If they are installed in
a non-standard location, you may need to configure setuptools to use
those locations by editing :file:`setup.py` or
:file:`setup.cfg`, or by adding environment variables on the command
line::
CFLAGS="-I/usr/pkg/include" python3 -m pip install --upgrade Pillow
If Pillow has been previously built without the required
prerequisites, it may be necessary to manually clear the pip cache or
build without cache using the ``--no-cache-dir`` option to force a
build with newly installed external libraries.
Build Options
^^^^^^^^^^^^^
* Environment variable: ``MAX_CONCURRENCY=n``. Pillow can use
multiprocessing to build the extension. Setting ``MAX_CONCURRENCY``
sets the number of CPUs to use, or can disable parallel building by
using a setting of 1. By default, it uses 4 CPUs, or if 4 are not
available, as many as are present.
* Build flags: ``--disable-zlib``, ``--disable-jpeg``,
``--disable-tiff``, ``--disable-freetype``, ``--disable-lcms``,
``--disable-webp``, ``--disable-webpmux``, ``--disable-jpeg2000``,
``--disable-imagequant``, ``--disable-xcb``.
Disable building the corresponding feature even if the development
libraries are present on the building machine.
* Build flags: ``--enable-zlib``, ``--enable-jpeg``,
``--enable-tiff``, ``--enable-freetype``, ``--enable-lcms``,
``--enable-webp``, ``--enable-webpmux``, ``--enable-jpeg2000``,
``--enable-imagequant``, ``--enable-xcb``.
Require that the corresponding feature is built. The build will raise
an exception if the libraries are not found. Webpmux (WebP metadata)
relies on WebP support. Tcl and Tk also must be used together.
* Build flag: ``--disable-platform-guessing``. Skips all of the
platform dependent guessing of include and library directories for
automated build systems that configure the proper paths in the
environment variables (e.g. Buildroot).
* Build flag: ``--debug``. Adds a debugging flag to the include and
library search process to dump all paths searched for and found to
stdout.
Sample usage::
MAX_CONCURRENCY=1 python3 setup.py build_ext --enable-[feature] install
or using pip::
python3 -m pip install --upgrade Pillow --global-option="build_ext" --global-option="--enable-[feature]"
Building on macOS
^^^^^^^^^^^^^^^^^
The Xcode command line tools are required to compile portions of
Pillow. The tools are installed by running ``xcode-select --install``
from the command line. The command line tools are required even if you
have the full Xcode package installed. It may be necessary to run
``sudo xcodebuild -license`` to accept the license prior to using the
tools.
The easiest way to install external libraries is via `Homebrew
<https://brew.sh/>`_. After you install Homebrew, run::
brew install libtiff libjpeg webp little-cms2
To install libraqm on macOS use Homebrew to install its dependencies::
brew install freetype harfbuzz fribidi
Then see ``depends/install_raqm_cmake.sh`` to install libraqm.
Now install Pillow with::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
or from within the uncompressed source directory::
python3 setup.py install
Building on Windows
^^^^^^^^^^^^^^^^^^^
We recommend you use prebuilt wheels from PyPI.
If you wish to compile Pillow manually, you can use the build scripts
in the ``winbuild`` directory used for CI testing and development.
These scripts require Visual Studio 2017 or newer and NASM.
Building on Windows using MSYS2/MinGW
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
To build Pillow using MSYS2, make sure you run the **MSYS2 MinGW 32-bit** or
**MSYS2 MinGW 64-bit** console, *not* **MSYS2** directly.
The following instructions target the 64-bit build, for 32-bit
replace all occurrences of ``mingw-w64-x86_64-`` with ``mingw-w64-i686-``.
Make sure you have Python and GCC installed::
pacman -S \
mingw-w64-x86_64-gcc \
mingw-w64-x86_64-python3 \
mingw-w64-x86_64-python3-pip \
mingw-w64-x86_64-python3-setuptools
Prerequisites are installed on **MSYS2 MinGW 64-bit** with::
pacman -S \
mingw-w64-x86_64-libjpeg-turbo \
mingw-w64-x86_64-zlib \
mingw-w64-x86_64-libtiff \
mingw-w64-x86_64-freetype \
mingw-w64-x86_64-lcms2 \
mingw-w64-x86_64-libwebp \
mingw-w64-x86_64-openjpeg2 \
mingw-w64-x86_64-libimagequant \
mingw-w64-x86_64-libraqm
Now install Pillow with::
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
Building on FreeBSD
^^^^^^^^^^^^^^^^^^^
.. Note:: Only FreeBSD 10 and 11 tested
Make sure you have Python's development libraries installed::
sudo pkg install python3
Prerequisites are installed on **FreeBSD 10 or 11** with::
sudo pkg install jpeg-turbo tiff webp lcms2 freetype2 openjpeg harfbuzz fribidi libxcb
Then see ``depends/install_raqm_cmake.sh`` to install libraqm.
Building on Linux
^^^^^^^^^^^^^^^^^
If you didn't build Python from source, make sure you have Python's
development libraries installed.
In Debian or Ubuntu::
sudo apt-get install python3-dev python3-setuptools
In Fedora, the command is::
sudo dnf install python3-devel redhat-rpm-config
In Alpine, the command is::
sudo apk add python3-dev py3-setuptools
.. Note:: ``redhat-rpm-config`` is required on Fedora 23, but not earlier versions.
Prerequisites for **Ubuntu 16.04 LTS - 20.04 LTS** are installed with::
sudo apt-get install libtiff5-dev libjpeg8-dev libopenjp2-7-dev zlib1g-dev \
libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python3-tk \
libharfbuzz-dev libfribidi-dev libxcb1-dev
Then see ``depends/install_raqm.sh`` to install libraqm.
Prerequisites are installed on recent **Red Hat**, **CentOS** or **Fedora** with::
sudo dnf install libtiff-devel libjpeg-devel openjpeg2-devel zlib-devel \
freetype-devel lcms2-devel libwebp-devel tcl-devel tk-devel \
harfbuzz-devel fribidi-devel libraqm-devel libimagequant-devel libxcb-devel
Note that the package manager may be yum or DNF, depending on the
exact distribution.
Prerequisites are installed for **Alpine** with::
sudo apk add tiff-dev jpeg-dev openjpeg-dev zlib-dev freetype-dev lcms2-dev \
libwebp-dev tcl-dev tk-dev harfbuzz-dev fribidi-dev libimagequant-dev \
libxcb-dev libpng-dev
See also the ``Dockerfile``\s in the Test Infrastructure repo
(https://github.com/python-pillow/docker-images) for a known working
install process for other tested distros.
Building on Android
^^^^^^^^^^^^^^^^^^^
Basic Android support has been added for compilation within the Termux
environment. The dependencies can be installed by::
pkg install -y python ndk-sysroot clang make \
libjpeg-turbo
This has been tested within the Termux app on ChromeOS, on x86.
Platform Support
----------------
Current platform support for Pillow. Binary distributions are
contributed for each release on a volunteer basis, but the source
should compile and run everywhere platform support is listed. In
general, we aim to support all current versions of Linux, macOS, and
Windows.
Continuous Integration Targets
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
These platforms are built and tested for every change.
+----------------------------------+--------------------------+-----------------------+
|**Operating system** |**Tested Python versions**|**Tested architecture**|
+----------------------------------+--------------------------+-----------------------+
| Alpine | 3.8 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Arch | 3.8 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Amazon Linux 2 | 3.7 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| CentOS 7 | 3.6 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| CentOS 8 | 3.6 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Debian 10 Buster | 3.7 |x86 |
+----------------------------------+--------------------------+-----------------------+
| Fedora 32 | 3.8 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Fedora 33 | 3.9 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| macOS 10.15 Catalina | 3.6, 3.7, 3.8, 3.9, PyPy3|x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Ubuntu Linux 16.04 LTS (Xenial) | 3.6, 3.7, 3.8, 3.9, PyPy3|x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Ubuntu Linux 18.04 LTS (Bionic) | 3.6, 3.7, 3.8, 3.9, PyPy3|x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Ubuntu Linux 20.04 LTS (Focal) | 3.8 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Windows Server 2016 | 3.6 |x86-64 |
+----------------------------------+--------------------------+-----------------------+
| Windows Server 2019 | 3.6, 3.7, 3.8, 3.9 |x86, x86-64 |
| +--------------------------+-----------------------+
| | PyPy3 |x86 |
| +--------------------------+-----------------------+
| | 3.8/MinGW |x86, x86-64 |
+----------------------------------+--------------------------+-----------------------+
Other Platforms
^^^^^^^^^^^^^^^
These platforms have been reported to work at the versions mentioned.
.. note::
Contributors please test Pillow on your platform then update this
document and send a pull request.
+----------------------------------+------------------------------+--------------------------------+-----------------------+
|**Operating system** |**Tested Python versions** |**Latest tested Pillow version**|**Tested processors** |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| macOS 11.0 Big Sur | 3.8, 3.9 | 8.1.2 |arm |
| +------------------------------+--------------------------------+-----------------------+
| | 3.6, 3.7, 3.8, 3.9 | 8.1.2 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| macOS 10.15 Catalina | 3.6, 3.7, 3.8, 3.9 | 8.0.1 |x86-64 |
| +------------------------------+--------------------------------+ +
| | 3.5 | 7.2.0 | |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| macOS 10.14 Mojave | 3.5, 3.6, 3.7, 3.8 | 7.2.0 |x86-64 |
| +------------------------------+--------------------------------+ +
| | 2.7 | 6.0.0 | |
| +------------------------------+--------------------------------+ +
| | 3.4 | 5.4.1 | |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| macOS 10.13 High Sierra | 2.7, 3.4, 3.5, 3.6 | 4.2.1 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| macOS 10.12 Sierra | 2.7, 3.4, 3.5, 3.6 | 4.1.1 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Mac OS X 10.11 El Capitan | 2.7, 3.4, 3.5, 3.6, 3.7 | 5.4.1 |x86-64 |
| +------------------------------+--------------------------------+ +
| | 3.3 | 4.1.0 | |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Mac OS X 10.9 Mavericks | 2.7, 3.2, 3.3, 3.4 | 3.0.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Mac OS X 10.8 Mountain Lion | 2.6, 2.7, 3.2, 3.3 | |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Redhat Linux 6 | 2.6 | |x86 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| CentOS 6.3 | 2.7, 3.3 | |x86 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Fedora 23 | 2.7, 3.4 | 3.1.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Ubuntu Linux 12.04 LTS (Precise) | 2.6, 3.2, 3.3, 3.4, 3.5 | 3.4.1 |x86,x86-64 |
| | PyPy5.3.1, PyPy3 v2.4.0 | | |
| +------------------------------+--------------------------------+-----------------------+
| | 2.7 | 4.3.0 |x86-64 |
| +------------------------------+--------------------------------+-----------------------+
| | 2.7, 3.2 | 3.4.1 |ppc |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Ubuntu Linux 10.04 LTS (Lucid) | 2.6 | 2.3.0 |x86,x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Debian 8.2 Jessie | 2.7, 3.4 | 3.1.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Raspbian Jessie | 2.7, 3.4 | 3.1.0 |arm |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Raspbian Stretch | 2.7, 3.5 | 4.0.0 |arm |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Gentoo Linux | 2.7, 3.2 | 2.1.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| FreeBSD 11.1 | 2.7, 3.4, 3.5, 3.6 | 4.3.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| FreeBSD 10.3 | 2.7, 3.4, 3.5 | 4.2.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| FreeBSD 10.2 | 2.7, 3.4 | 3.1.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Windows 10 | 3.7 | 7.1.0 |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Windows 8.1 Pro | 2.6, 2.7, 3.2, 3.3, 3.4 | 2.4.0 |x86,x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Windows 8 Pro | 2.6, 2.7, 3.2, 3.3, 3.4a3 | 2.2.0 |x86,x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Windows 7 Professional | 3.7 | 7.0.0 |x86,x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
| Windows Server 2008 R2 Enterprise| 3.3 | |x86-64 |
+----------------------------------+------------------------------+--------------------------------+-----------------------+
Old Versions
------------
You can download old distributions from the `release history at PyPI
<https://pypi.org/project/Pillow/#history>`_ and by direct URL access
eg. https://pypi.org/project/Pillow/1.0/.
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