301 lines
10 KiB
Plaintext
301 lines
10 KiB
Plaintext
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The Python Imaging Library
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$Id$
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Release 1.1.7 (November 15, 2009)
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====================================================================
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The Python Imaging Library 1.1.7
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====================================================================
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Contents
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--------
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+ Introduction
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+ Support Options
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- Commercial support
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- Free support
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+ Software License
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+ Build instructions (all platforms)
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- Additional notes for Mac OS X
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- Additional notes for Windows
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--------------------------------------------------------------------
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Introduction
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--------------------------------------------------------------------
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The Python Imaging Library (PIL) adds image processing capabilities
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to your Python environment. This library provides extensive file
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format support, an efficient internal representation, and powerful
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image processing capabilities.
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This source kit has been built and tested with Python 2.0 and newer,
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on Windows, Mac OS X, and major Unix platforms. Large parts of the
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library also work on 1.5.2 and 1.6.
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The main distribution site for this software is:
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http://www.pythonware.com/products/pil/
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That site also contains information about free and commercial support
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options, PIL add-ons, answers to frequently asked questions, and more.
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Development versions (alphas, betas) are available here:
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http://effbot.org/downloads/
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The PIL handbook is not included in this distribution; to get the
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latest version, check:
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http://www.pythonware.com/library/
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http://effbot.org/books/imagingbook/ (drafts)
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For installation and licensing details, see below.
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--------------------------------------------------------------------
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Support Options
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--------------------------------------------------------------------
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+ Commercial Support
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Secret Labs (PythonWare) offers support contracts for companies using
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the Python Imaging Library in commercial applications, and in mission-
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critical environments. The support contract includes technical support,
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bug fixes, extensions to the PIL library, sample applications, and more.
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For the full story, check:
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http://www.pythonware.com/products/pil/support.htm
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+ Free Support
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For support and general questions on the Python Imaging Library, send
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e-mail to the Image SIG mailing list:
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image-sig@python.org
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You can join the Image SIG by sending a mail to:
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image-sig-request@python.org
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Put "subscribe" in the message body to automatically subscribe to the
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list, or "help" to get additional information. Alternatively, you can
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send your questions to the Python mailing list, python-list@python.org,
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or post them to the newsgroup comp.lang.python. DO NOT SEND SUPPORT
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QUESTIONS TO PYTHONWARE ADDRESSES.
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--------------------------------------------------------------------
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Software License
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--------------------------------------------------------------------
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The Python Imaging Library is
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Copyright (c) 1997-2009 by Secret Labs AB
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Copyright (c) 1995-2009 by Fredrik Lundh
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By obtaining, using, and/or copying this software and/or its
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associated documentation, you agree that you have read, understood,
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and will comply with the following terms and conditions:
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Permission to use, copy, modify, and distribute this software and its
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associated documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appears in all
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copies, and that both that copyright notice and this permission notice
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appear in supporting documentation, and that the name of Secret Labs
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AB or the author not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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--------------------------------------------------------------------
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Build instructions (all platforms)
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--------------------------------------------------------------------
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For a list of changes in this release, see the CHANGES document.
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0. If you're in a hurry, try this:
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$ tar xvfz Imaging-1.1.7.tar.gz
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$ cd Imaging-1.1.7
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$ python setup.py install
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If you prefer to know what you're doing, read on.
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1. Prerequisites.
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If you need any of the features described below, make sure you
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have the necessary libraries before building PIL.
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feature library
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-----------------------------------------------------------------
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JPEG support libjpeg (6a or 6b)
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http://www.ijg.org
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http://www.ijg.org/files/jpegsrc.v6b.tar.gz
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ftp://ftp.uu.net/graphics/jpeg/
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PNG support zlib (1.2.3 or later is recommended)
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http://www.gzip.org/zlib/
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OpenType/TrueType freetype2 (2.3.9 or later is recommended)
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support
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http://www.freetype.org
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http://freetype.sourceforge.net
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CMS support littleCMS (1.1.5 or later is recommended)
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support
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http://www.littlecms.com/
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If you have a recent Linux version, the libraries provided with the
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operating system usually work just fine. If some library is
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missing, installing a prebuilt version (jpeg-devel, zlib-devel,
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etc) is usually easier than building from source. For example, for
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Ubuntu 9.10 (karmic), you can install the following libraries:
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sudo apt-get install libjpeg62-dev
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sudo apt-get install zlib1g-dev
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sudo apt-get install libfreetype6-dev
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sudo apt-get install liblcms1-dev
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If you're using Mac OS X, you can use the 'fink' tool to install
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missing libraries (also see the Mac OS X section below).
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Similar tools are available for many other platforms.
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2. To build under Python 1.5.2, you need to install the stand-alone
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version of the distutils library:
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http://www.python.org/sigs/distutils-sig/download.html
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You can fetch distutils 1.0.2 from the Python source repository:
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svn export http://svn.python.org/projects/python/tags/Distutils-1_0_2/Lib/distutils/
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For newer releases, the distutils library is included in the
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Python standard library.
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NOTE: Version 1.1.7 is not fully compatible with 1.5.2. Some
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more recent additions to the library may not work, but the core
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functionality is available.
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3. If you didn't build Python from sources, make sure you have
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Python's build support files on your machine. If you've down-
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loaded a prebuilt package (e.g. a Linux RPM), you probably
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need additional developer packages. Look for packages named
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"python-dev", "python-devel", or similar. For example, for
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Ubuntu 9.10 (karmic), use the following command:
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sudo apt-get install python-dev
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4. When you have everything you need, unpack the PIL distribution
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(the file Imaging-1.1.7.tar.gz) in a suitable work directory:
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$ cd MyExtensions # example
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$ gunzip Imaging-1.1.7.tar.gz
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$ tar xvf Imaging-1.1.7.tar
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5. Build the library. We recommend that you do an in-place build,
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and run the self test before installing.
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$ cd Imaging-1.1.7
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$ python setup.py build_ext -i
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$ python selftest.py
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During the build process, the setup.py will display a summary
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report that lists what external components it found. The self-
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test will display a similar report, with what external components
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the tests found in the actual build files:
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----------------------------------------------------------------
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PIL 1.1.7 SETUP SUMMARY
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----------------------------------------------------------------
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*** TKINTER support not available (Tcl/Tk 8.5 libraries needed)
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--- JPEG support available
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--- ZLIB (PNG/ZIP) support available
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--- FREETYPE support available
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----------------------------------------------------------------
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Make sure that the optional components you need are included.
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If the build script won't find a given component, you can edit the
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setup.py file and set the appropriate ROOT variable. For details,
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see instructions in the file.
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If the build script finds the component, but the tests cannot
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identify it, try rebuilding *all* modules:
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$ python setup.py clean
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$ python setup.py build_ext -i
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6. If the setup.py and selftest.py commands finish without any
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errors, you're ready to install the library:
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$ python setup.py install
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(depending on how Python has been installed on your machine,
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you might have to log in as a superuser to run the 'install'
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command, or use the 'sudo' command to run 'install'.)
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--------------------------------------------------------------------
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Additional notes for Mac OS X
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--------------------------------------------------------------------
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On Mac OS X you will usually install additional software such as
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libjpeg or freetype with the "fink" tool, and then it ends up in
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"/sw". If you have installed the libraries elsewhere, you may have
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to tweak the "setup.py" file before building.
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--------------------------------------------------------------------
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Additional notes for Windows
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--------------------------------------------------------------------
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On Windows, you need to tweak the ROOT settings in the "setup.py"
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file, to make it find the external libraries. See comments in the
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file for details.
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Make sure to build PIL and the external libraries with the same
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runtime linking options as was used for the Python interpreter
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(usually /MD, under Visual Studio).
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Note that most Python distributions for Windows include libraries
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compiled for Microsoft Visual Studio. You can get the free Express
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edition of Visual Studio from:
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http://www.microsoft.com/Express/
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To build extensions using other tool chains, see the "Using
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non-Microsoft compilers on Windows" section in the distutils handbook:
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http://www.python.org/doc/current/inst/non-ms-compilers.html
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For additional information on how to build extensions using the
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popular MinGW compiler, see:
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http://mingw.org (compiler)
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http://sebsauvage.net/python/mingw.html (build instructions)
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http://sourceforge.net/projects/gnuwin32 (prebuilt libraries)
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