Pillow/index.html
2010-07-30 23:19:31 -04:00

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<div class="document">
<div class="section" id="pillow">
<h1>Pillow</h1>
<p>Pillow is a &quot;friendly&quot; fork of the Python Imaging Library. The goal is to see
if any improvement can be made to the packaging situation(*) by opening up
development to the &quot;public&quot;.</p>
<p>Please email: <a class="reference external" href="mailto:aclark&#64;aclark.net">aclark&#64;aclark.net</a> if you'd like to help, or complain.</p>
<p>(*)PIL has a bad reputation for not &quot;playing nice&quot; with other packages. It's
kind of a long story, and you either know it by now or you don't. A better
explanation may come later.</p>
<p>For PIL's README, check out PIL.txt</p>
</div>
<div class="section" id="build-instructions-all-platforms">
<h1>Build instructions (all platforms)</h1>
<p>For a list of changes in this release, see the CHANGES document.</p>
<p>If you're in a hurry, try this:</p>
<pre class="literal-block">
$ tar xvfz Imaging-1.1.7.tar.gz
$ cd Imaging-1.1.7
$ python setup.py install
</pre>
<p>If you prefer to know what you're doing, read on.</p>
<div class="section" id="prerequisites">
<h2>Prerequisites</h2>
<p>If you need any of the features described below, make sure you
have the necessary libraries before building PIL:</p>
<pre class="literal-block">
feature library
-----------------------------------------------------------------
JPEG support libjpeg (6a or 6b)
http://www.ijg.org
http://www.ijg.org/files/jpegsrc.v6b.tar.gz
ftp://ftp.uu.net/graphics/jpeg/
PNG support zlib (1.2.3 or later is recommended)
http://www.gzip.org/zlib/
OpenType/TrueType freetype2 (2.3.9 or later is recommended)
support
http://www.freetype.org
http://freetype.sourceforge.net
CMS support littleCMS (1.1.5 or later is recommended)
support
http://www.littlecms.com/
</pre>
<p>If you have a recent Linux version, the libraries provided with the
operating system usually work just fine. If some library is
missing, installing a prebuilt version (jpeg-devel, zlib-devel,
etc) is usually easier than building from source. For example, for
Ubuntu 9.10 (karmic), you can install the following libraries:</p>
<pre class="literal-block">
sudo apt-get install libjpeg62-dev
sudo apt-get install zlib1g-dev
sudo apt-get install libfreetype6-dev
sudo apt-get install liblcms1-dev
</pre>
<p>If you're using Mac OS X, you can use the 'fink' tool to install
missing libraries (also see the Mac OS X section below).</p>
<p>Similar tools are available for many other platforms.</p>
<p>To build under Python 1.5.2, you need to install the stand-alone
version of the distutils library:</p>
<blockquote>
<a class="reference external" href="http://www.python.org/sigs/distutils-sig/download.html">http://www.python.org/sigs/distutils-sig/download.html</a></blockquote>
<p>You can fetch distutils 1.0.2 from the Python source repository:</p>
<blockquote>
svn export <a class="reference external" href="http://svn.python.org/projects/python/tags/Distutils-1_0_2/Lib/distutils/">http://svn.python.org/projects/python/tags/Distutils-1_0_2/Lib/distutils/</a></blockquote>
<p>For newer releases, the distutils library is included in the
Python standard library.</p>
<p>NOTE: Version 1.1.7 is not fully compatible with 1.5.2. Some
more recent additions to the library may not work, but the core
functionality is available.</p>
<p>If you didn't build Python from sources, make sure you have
Python's build support files on your machine. If you've down-
loaded a prebuilt package (e.g. a Linux RPM), you probably
need additional developer packages. Look for packages named
&quot;python-dev&quot;, &quot;python-devel&quot;, or similar. For example, for
Ubuntu 9.10 (karmic), use the following command:</p>
<blockquote>
sudo apt-get install python-dev</blockquote>
<p>When you have everything you need, unpack the PIL distribution
(the file Imaging-1.1.7.tar.gz) in a suitable work directory:</p>
<blockquote>
$ cd MyExtensions # example
$ gunzip Imaging-1.1.7.tar.gz
$ tar xvf Imaging-1.1.7.tar</blockquote>
<p>Build the library. We recommend that you do an in-place build,
and run the self test before installing.</p>
<blockquote>
$ cd Imaging-1.1.7
$ python setup.py build_ext -i
$ python selftest.py</blockquote>
<p>During the build process, the setup.py will display a summary
report that lists what external components it found. The self-
test will display a similar report, with what external components
the tests found in the actual build files:</p>
<pre class="literal-block">
----------------------------------------------------------------
PIL 1.1.7 SETUP SUMMARY
----------------------------------------------------------------
*** TKINTER support not available (Tcl/Tk 8.5 libraries needed)
--- JPEG support available
--- ZLIB (PNG/ZIP) support available
--- FREETYPE support available
----------------------------------------------------------------
</pre>
<p>Make sure that the optional components you need are included.</p>
<p>If the build script won't find a given component, you can edit the
setup.py file and set the appropriate ROOT variable. For details,
see instructions in the file.</p>
<p>If the build script finds the component, but the tests cannot
identify it, try rebuilding <em>all</em> modules:</p>
<blockquote>
$ python setup.py clean
$ python setup.py build_ext -i</blockquote>
<p>If the setup.py and selftest.py commands finish without any
errors, you're ready to install the library:</p>
<blockquote>
$ python setup.py install</blockquote>
<p>(depending on how Python has been installed on your machine,
you might have to log in as a superuser to run the 'install'
command, or use the 'sudo' command to run 'install'.)</p>
<div class="section" id="additional-notes-for-mac-os-x">
<h3>Additional notes for Mac OS X</h3>
<p>On Mac OS X you will usually install additional software such as
libjpeg or freetype with the &quot;fink&quot; tool, and then it ends up in
&quot;/sw&quot;. If you have installed the libraries elsewhere, you may have
to tweak the &quot;setup.py&quot; file before building.</p>
</div>
<div class="section" id="additional-notes-for-windows">
<h3>Additional notes for Windows</h3>
<p>On Windows, you need to tweak the ROOT settings in the &quot;setup.py&quot;
file, to make it find the external libraries. See comments in the
file for details.</p>
<p>Make sure to build PIL and the external libraries with the same
runtime linking options as was used for the Python interpreter
(usually /MD, under Visual Studio).</p>
<p>Note that most Python distributions for Windows include libraries
compiled for Microsoft Visual Studio. You can get the free Express
edition of Visual Studio from:</p>
<blockquote>
<a class="reference external" href="http://www.microsoft.com/Express/">http://www.microsoft.com/Express/</a></blockquote>
<p>To build extensions using other tool chains, see the &quot;Using
non-Microsoft compilers on Windows&quot; section in the distutils handbook:</p>
<blockquote>
<a class="reference external" href="http://www.python.org/doc/current/inst/non-ms-compilers.html">http://www.python.org/doc/current/inst/non-ms-compilers.html</a></blockquote>
<p>For additional information on how to build extensions using the
popular MinGW compiler, see:</p>
<blockquote>
<a class="reference external" href="http://mingw.org">http://mingw.org</a> (compiler)
<a class="reference external" href="http://sebsauvage.net/python/mingw.html">http://sebsauvage.net/python/mingw.html</a> (build instructions)
<a class="reference external" href="http://sourceforge.net/projects/gnuwin32">http://sourceforge.net/projects/gnuwin32</a> (prebuilt libraries)</blockquote>
</div>
</div>
</div>
<div class="section" id="changelog">
<h1>Changelog</h1>
<div class="section" id="fri-jul-30-23-12-21-edt-2010">
<h2>1.0 - Fri Jul 30 23:12:21 EDT 2010</h2>
<ul class="simple">
<li>Forked PIL [aclark]</li>
</ul>
</div>
</div>
</div>
</body>
</html>