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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html lang="en">
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<meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
<title>Python Package Manager</title>
<meta name="generator" content="BBEdit 6.5.3">
<link rel="SHORTCUT ICON" href="pythonsmall.gif">
<META NAME="AppleIcon" CONTENT="pythonsmall.gif">
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<h1>Installing additional Python Packages</h1>
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<img src="PackageManager.gif" width="128" height="128" align="top" alt="">
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<p>The Python Package Manager helps you installing additional
packages that enhance Python. It determines the exact MacOS version
and Python version you have and uses that information to download
a database that has packages that are test and tried on that
combination. In other words: if something is in your Package Manager
window but does not work you are free to blame the database maintainer.</p>
<p>PackageManager then checks which of the packages you have installed
and which ones not. This should also work when you have installed packages
outside of PackageManager.
You can select packages and install them, and PackageManager will work
out the requirements and install these too.</p>
<p>Often PackageManager will list a package in two flavors: binary
and source. Binary should always work, source will only work if
you have installed the Apple Developer Tools. PackageManager will warn
you about this, and also about other external dependencies.</p>
<p>PackageManager is available as a separate application and also
as a function of the IDE, through the <tt>File->Package Manager</tt> menu
entry. </p>
<h2>Troubleshooting</h2>
<p>If package manager fails to open the database first check that you are
connected to the internet. If you are connected then the problem
could be that there is no database (yet?) for your version of Mac OS X.
You may be able to find an alternative
database that works for your system at
<a href="http://www.python.org/packman">http://www.python.org/packman</a>.
In the standalone Package Manager you can then open such an alternative database
with the <tt>File->Open URL...</tt> command, but you should realize that
you are now on untested ground.</p>
<p>Another potential problem source is that you are behind a firewall. This version
of PackageManager uses the Unix method of setting a firewall: you need to set the
environment variable <tt>http_proxy</tt> to <tt>"http://<i>proxyhost</i>:<i>port</i>"</tt>.
See <a href="http://developer.apple.com/qa/qa2001/qa1067.html">Apple Technical
Q&A QA1067</a> for instructions.</p>
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