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small FAQ about Python CVS and patches at SourceForge
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Peter Schneider-Kamp
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta name="GENERATOR" content="Mozilla/4.72 [en] (X11; I; Linux 2.2.13 i686) [Netscape]">
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</head>
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<body text="#000000" bgcolor="#99CCFF" link="#0000EF" vlink="#51188E" alink="#FF0000">
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<center>
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<h1>
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Python at SourceForge - Frequently Asked Questions</h1></center>
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<h1>
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0. Contents</h1>
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<h2>
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<a href="#general">1. General</a></h2>
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<ol>
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<li>
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<a href="#g1">What is SourceForge?</a></li>
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<li>
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<a href="#g2">Where do I find Python there?</a></li>
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</ol>
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<h2>
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<a href="#cvs">2. CVS</a></h2>
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<ol>
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<li>
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<a href="#c1">How do I check out a CVS version of Python?</a></li>
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<li>
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<a href="#c2">What settings should I use?</a></li>
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<li>
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<a href="#c3">Troubleshooting: "Permission Denied"</a></li>
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<li>
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<a href="#c4">Where can I learn more about CVS?</a></li>
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</ol>
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<h2>
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<a href="#patches">3. Patches</a></h2>
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<ol>
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<li>
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<a href="#p1">How to make a patch?</a></li>
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<li>
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<a href="#p2">How to submit patches?</a></li>
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<li>
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<a href="#p3">How to change the status of a patch?</a></li>
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</ol>
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<h2>
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<a href="#appendix">A. Appendix</a></h2>
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<ol>
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<li>
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<a href="#a1">Patch Manager Guidelines [09.07.2000]</a></li>
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<li>
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<a href="#a2">Python Patch Submission Guidelines [29.06.2000]</a></li>
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</ol>
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<h1>
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<a NAME="general"></a>1. General</h1>
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<h3>
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<a NAME="g1"></a>1.1.:</h3>
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<h4>
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Q: What is SourceForge?</h4>
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<h4>
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A:</h4>
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<a href="http://sourceforge.net">SourceForge</a> is a free hosting service
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for <a href="http://opensource.org">OpenSource</a> projects. The main website
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is found at
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<blockquote><tt><a href="http://sourceforge.net">http://sourceforge.net</a></tt></blockquote>
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<h3>
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<a NAME="g2"></a>1.2.:</h3>
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<h4>
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Q: Where can I find Python on SourceForge?</h4>
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<h4>
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A:</h4>
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The <a href="http://sourceforge.net/projects/python">Python project page</a>
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can be found at
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<blockquote><tt><a href="http://sourceforge.net/projects/python">http://sourceforge.net/projects/python</a></tt></blockquote>
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<h1>
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<a NAME="cvs"></a>2. CVS</h1>
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<h3>
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<a NAME="c1"></a>2.1.:</h3>
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<h4>
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Q: How do I check out a CVS version of Python?</h4>
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<h4>
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A:</h4>
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If you are not a SourceForge-recognized Python developer you can
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still check out an anonymous CVS version (read-only) of Python:
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<blockquote><tt>export CVSROOT=:pserver:anonymous@cvs.python.sourceforge.net:/cvsroot/python</tt>
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<br><tt>cvs login</tt>
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<br><tt>cvs -z3 co python</tt></blockquote>
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If you are indeed a developer you can check out a read/write version with
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ssh:
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<blockquote><tt>export CVS_RSH=ssh</tt>
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<br><tt>export CVSROOT=sf_username@cvs.python.sourceforge.net:/cvsroot/python</tt>
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<br><tt>cvs -z3 co python</tt></blockquote>
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<h3>
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<a NAME="c2"></a>2.2.:</h3>
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<h4>
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Q: What setting should I use?</h4>
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<h4>
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A:</h4>
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That is, of course, hard to answer in the general case. I use the following
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.cvsrc file:
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<blockquote><tt>diff -c</tt>
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<br><tt>update -d</tt></blockquote>
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This defaults diff to context diffs (almost a requirement as everything
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else is harder to read) and tells update to automatically checkout new
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subdirectories.
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<h3>
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<a NAME="c3"></a>2.3.:</h3>
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<h4>
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Q: I get the following error message:</h4>
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<blockquote><tt>Sorry, you don't have read/write access to the history
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file /cvsroot/python/CVSROOT/history</tt>
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<br><tt>Permission denied</tt></blockquote>
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<h4>
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A:</h4>
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If you are not a developer, you don't have read/write access. You have
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to check out an anonymous copy. If you are a developer you have to be in
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the SourceForge group "python". You can check this with the following commands:
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<blockquote><tt>ssh -l sf_username shell.sourceforge.net</tt>
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<br><tt>groups</tt></blockquote>
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If you have just recently (< 6 hours) been added to the Python project,
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you probably have to wait for the SourceForge servers to synch up. This
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can take up to 6 hours.
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<h3>
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<a NAME="c4"></a>2.4.:</h3>
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<h4>
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Q: Where can I learn more about CVS?</h4>
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<h4>
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A:</h4>
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For SourceForge specific information consult their CVS documentation at
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<blockquote><tt><a href="http://sfdocs.sourceforge.net/sfdocs">http://sfdocs.sourceforge.net/sfdocs</a></tt></blockquote>
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For general (and more advanced) information consult the free CVS Book at
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<blockquote><tt><a href="http://cvsbook.red-bean.com/cvsbook.html#Introduction">http://cvsbook.red-bean.com/cvsbook.html#Introduction</a></tt></blockquote>
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<h1>
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<a NAME="patches"></a>3. Patches</h1>
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<h3>
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<a NAME="p1"></a>3.1.:</h3>
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<h4>
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Q: How to make a patch?</h4>
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<h4>
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A:</h4>
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If you are using CVS (anonymous or developer) you can use CVS to make the
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patches for you. Just edit your local copy and enter the following command:
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<blockquote><tt>cvs diff | tee ~/name_of_the_patch.diff</tt></blockquote>
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Else you can use the diff util which comes with most operating systems
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(a Windows version is available as part of the cygwin tools).
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<br>
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<h3>
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<a NAME="p2"></a>3.2.:</h3>
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<h4>
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Q: How to submit a patch?</h4>
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<h4>
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A:</h4>
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Please read the <a href="http://www.python.org/patches">Patch Submission
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Guidelines</a> at
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<blockquote><tt><a href="http://www.python.org/patches">http://www.python.org/patches</a></tt></blockquote>
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A <a href="#a2">recent copy</a> can be found in the Appendix of this FAQ.
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<br>
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<h3>
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<a NAME="p3"></a>3.3.:</h3>
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<h4>
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Q: How to change the status of a patch?</h4>
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<h4>
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A:</h4>
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To change the status of a patch or assign it to somebody else you have
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to be a) a SourceForge-recognized Python developer and b) a patch administrator.
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Unfortunately the SourceForge default for developers is not to be patch
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administrators. Contact one of the project administrators if the following
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does not work for you.
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<p>Click on the patch itself. In the screen that comes up, there is a drop-box
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for "Assigned To:" and a drop-box for "Status:" where you can select a
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new responsible developer or a new status respectively. After selecting
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the appropriate victim and status, hit the "Submit Changes" button at the
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bottom of the page.
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<p>For more information about the use of the "Status:" and "Assigned To:"
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fields consult the <a href="#a1">Patch Manager Guidelines</a>. A recent
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copy can be found in the Appendix of this FAQ.
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<br>
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<h1>
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<a NAME="appendix"></a>A. Appendix</h1>
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<h3>
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<a NAME="a1"></a>A.1.: Patch Manager Guidelines</h3>
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<h4>
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Intended use of SourceForge patch status & "assigned to" fields</h4>
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revision 2
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09-Jul-2000
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<p>In general, the status field should be close to self-explanatory, and
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the "Assigned to:" field should be the person responsible for taking the
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next step in the patch process. Both fields are expected to change
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value over the life of a patch; the normal workflow is detailed below.
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<p>When you've got the time and the ability, feel free to move any patch
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that catches your eye along, whether or not it's been assigned to you.
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And if you're assigned to a patch but aren't going to take reasonably quick
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action (for whatever reason), please assign it to someone else ASAP:
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at those times you can't actively help, actively get out of the way.
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<p>If you're an expert in some area and know that a patch in that area
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is both needed and non-controversial, just commit your changes directly
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-- no need then to get the patch mechanism involved in it.
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<p>You should add a comment to every patch assigned to you at least once
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a week, if only to say that you realize it's still on your plate.
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This rule is meant to force your attention periodically: patches
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get harder & harder to deal with the longer they sit.
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<br>
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<h4>
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Open</h4>
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<blockquote>The initial status of all patches.
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<br>The patch is under consideration, but has not been reviewed yet.
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<br>The status will normally change to Accepted or Rejected next.
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<br>The person submitting the patch should (if they can) assign it to the
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person they most want to review it.
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<br>Else the patch will be assigned via [xxx a list of expertise areas
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should be developed] [xxx but since this hasn't happened and volunteers
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are too few, random assignment is better than nothing: if you're
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a Python developer, expect to get assigned out of the blue!]
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<br>Discussion of major patches is carried out on the Python-Dev mailing
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list. For simple patches, the SourceForge comment mechanism should
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be sufficient. [xxx an email gateway would be great, ditto Ping's Roundup]</blockquote>
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<h4>
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Accepted</h4>
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<blockquote>The powers that be accepted the patch, but it hasn't been applied
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yet. [xxx flesh out -- Guido Bottleneck avoidable here?]
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<br>The status will normally change to Closed next.
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<br>The person changing the status to Accepted should, at the same time,
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assign the patch to whoever they believe is most likely to be able &
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willing to apply it (the submitter if possible).</blockquote>
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<h4>
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Closed</h4>
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<blockquote>The patch has been accepted and applied.
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<br>The previous status was Accepted, or possibly Open if the submitter
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was Guido (or moral equivalent in some particular area of expertise).</blockquote>
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<h4>
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Rejected</h4>
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<blockquote>The patch has been reviewed and rejected.
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<br>When the objections are addressed, the status may change to Open again.
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<br>The person changing the status to Rejected should assign the patch
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back to the submitter, or if it's clear the patch will never be accepted,
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assign it to None.
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<br>Note that SourceForge allows the submitter to overwrite the patch with
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a new version.</blockquote>
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<h4>
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Out of date</h4>
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<blockquote>Previous status was Open or Accepted or Postponed, but the
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patch no longer works.
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<br>Please enter a comment when changing the status to "Out of date", to
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record the nature of the problem and the previous status.
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<br>Also assign it back to the submitter, as they need to upload a new
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version (note that SourceForge will not allow anyone other than the original
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submitter to update the patch).</blockquote>
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<h4>
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Postponed</h4>
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<blockquote>The previous status was Open or Accepted, but for some reason
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(e.g., pending release) the patch should not be reviewed or applied until
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further notice.
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<br>The status will normally change to Open or Accepted next.
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<br>Please enter a comment when changing the status to Postponed, to record
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the reason, the previous status, and the conditions under which the patch
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should revert to Open or Accepted. Also assign the patch to whoever
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is most likely able and willing to decide when the status should change
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again.</blockquote>
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<h4>
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Deleted</h4>
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<blockquote>Bit bucket.
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<br>Use only if it's OK for the patch and its SourceForge history to disappear.
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<br>As of 09-July-2000, SF does not actually throw away Deleted patches,
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but that may change.</blockquote>
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<h3>
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<a NAME="a2"></a>A.2.: Python Patch Submission Guidelines</h3>
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<b>New: CNRI is no longer involved in Python patches.</b> We no longer
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request legal disclaimers. Also, We're now using the SourceForge Patch
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Manager (a single mailing list became unmanageable).
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<p>Many people contribute patches to Python. We've set up a new system
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to deal with these. Here are the main guidelines:
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<ul>
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<li>
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<b>Submit your patch to the <a href="http://sourceforge.net/patch/?group_id=5470">patch
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manager</a> interface at <a href="http://sourceforge.net/project/?group_id=5470">SourceForge</a>.</b>
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We strongly recommend that you <a href="http://sourceforge.net/account/register.php">register
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with SourceForge</a> before submitting a patch. If you send patches directly
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to Guido you introduce an extra delay. Ditto for the "patches@python.org"
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mailing list address; this address should no longer be used for patch submission.
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The patch manager is for
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<b>patches</b> only; if you have a problem or
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suggestion but don't know how to write the code for it, use the <a href="http://www.python.org/search/search_bugs.html">Python
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Bugs List</a> instead. The bugs list is searchable; if you have a problem
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and you're not sure if it has been reported or fixed already, this is the
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first place to look. (There used to be a separate TODO list; we now prefer
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that you use the bugs list for suggestions and requests too.)</li>
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<br>
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<p>
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<br>
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<br>
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<p><b>Submit documentation patches the same way.</b> When adding the patch,
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be sure to set the "<b>Category</b>" field to "<b>documentation</b>". For
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documentation errors without patches, please use the <a href="http://www.python.org/search/search_bugs.html">Python
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Bugs List</a> instead.
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<li>
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We like context diffs. We grudgingly accept unified diffs.
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<b>Straight
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("ed-style") diffs are right out!</b> If you don't know how to generate
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context diffs, you're probably not qualified to produce high-quality patches
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anyway <0.5 wink>.</li>
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<li>
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We appreciate it if you send patches relative to the <a href="http://sourceforge.net/cvs/?group_id=5470">current
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CVS tree</a>. These are our latest sources. It's almost a year since Python
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1.5.2 was released, and many source files have been touched in more or
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less significant ways; a patch relative to Python 1.5.2 can cause a lot
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of extra pain to apply right. Even a patch relative to the latest alpha
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or beta release may be way out of date.</li>
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<li>
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Please add a succinct message to your SourceForge entry that explains what
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the patch is about that we can use directly as a checkin message. Ideally,
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such a message explains the problem and describes the fix in a few lines.</li>
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<li>
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For patches that add or change functionality: please also update the <b>documentation</b>
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and the <b>testcases</b> (the Lib/test subdirectory). For new modules,
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we appreciate a new test module (typically test/test_spam.py). In this
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case, there's no need to mail the documentation to a different address
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(in fact, in order to verify that the bundle is complete, it's easier to
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mail everything together).</li>
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<li>
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There are a variety of additional <a href="http://www.python.org/patches/style.html">style
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requirements</a>. Please have a look at these before writing new code.
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Also have a look at the general <a href="http://www.python.org/doc/essays/styleguide.html">Python
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Style Guide</a>.</li>
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</ul>
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</body>
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</html>
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