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| author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2011-08-16 09:06:37 +0000 |
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| committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2011-08-16 09:06:37 +0000 |
| commit | 39d98386f72c65826e162e3e8fd36752ec469252 (patch) | |
| tree | 5cec746207c4c892d064beafca1de94568a3aeb9 /doc/trouble.html | |
| download | pytde-39d98386f72c65826e162e3e8fd36752ec469252.tar.gz pytde-39d98386f72c65826e162e3e8fd36752ec469252.zip | |
Move python-kde3 to the more correct python-trinity
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/libraries/python-trinity@1247483 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'doc/trouble.html')
| -rw-r--r-- | doc/trouble.html | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/doc/trouble.html b/doc/trouble.html new file mode 100644 index 0000000..e93592f --- /dev/null +++ b/doc/trouble.html @@ -0,0 +1,337 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN + "http://www.w3.org/TR/html4/loose.dtd""> +<html> +<head> + <title>Troubleshooting</title> + <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> + <meta name="GENERATOR" content="Quanta Plus"> +</head> +<body> +<DIV +CLASS="NAVHEADER" +><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0"> +<TR><TH COLSPAN="3" ALIGN="center">Python Bindings for KDE (PyKDE-3.16.0)</TH></TR> +<TR><TD WIDTH="10%" ALIGN="left" VALIGN="bottom"><A HREF="install.html" ACCESSKEY="P">Prev</A></TD> +<TD WIDTH="80%" ALIGN="center" VALIGN="bottom"></TD> +<TD WIDTH="10%" ALIGN="right" VALIGN="bottom"><A HREF="switches.html" ACCESSKEY="N">Next</A></TD> +</TR> +</TABLE><HR ALIGN="LEFT" WIDTH="100%"></DIV> +<h1>Troubleshooting</h1> +<h2>Introduction</h2> +<p> +(There are distribution-specific notes at the end of this page) +</p> +<p> +Before each release, PyKDE is test built against SuSE, Red Hat and Mandrake Linux distributions, +and various versions of Python, Qt and KDE. Even after performing test builds, errors still can +occur with your installation. The most common sources of errors are (roughly in order of occurance): +</p> +<ul> +<li>Differences in user environments</li> +<li>Differences between distributions (or even between different builds of same version of the same distribution</li> +<li>Bugs - in PyKDE or any of the software it's based on (KDE, Qt, PyQt, sip, or even Python)</li> +</ul> +<h2>Reporting errors -- PLEASE READ!</h2> +<p> +The people on the PyKDE mailing list are knowledgeable about Python, PyQt,and PyKDE and are +genuinely helpful. You shouldn't hesitate to post a question or problem there (you may hear +"RTFM" occasionally, but not often). Chances are that someone using your distribution is already +posting to the list. +</p> +<p> +The most important thing you can do when reporting an installation error is to include the +configure.py output with your question, including the error message at the point of failure. +All configure.py messages write to stdout, so if you can't cut and paste the output, you can do: +</p> +<table border="0" bgcolor="#E0E0E0" width="100%"> +<tr> +<td> +<pre CLASS="PROGRAMLISTING"> + python configure.py > output.txt +</pre> +</td> +</tr> +</table> +<p> +to capture the output and attach the file to your post. In many cases, if you don't include +this info, the first response to your question will be to ask for the configure.py output. Including +it with your original post will save several hours or days in the process of obtaining an answer. +</p> +<p> +Bug reports are a vital part of any software development process. We generally try to provide +an immediate fix or work-around for problems reported, and then incorporate the fix into +future releases. Bug reports are always welcome (and always embarrassing). +</p> +<p> +If you are reporting PyKDE run-time errors (not install errors), there's no need to include +the configure.py output, but <b>at a minimum</b> you should indicate what PyKDE version the error +occurred with and provide a <i>small</i> code sample that reproduces the error. +</p> +<h2>If you perform repairs ...</h2> +<p> +If you edit any of the sip files to repair bugs or modify PyKDE, you <b>must</b> re-run +configure.py. configure.py includes code that generates the actual C++ code that compiles to PyKDE. +If you don't re-run configure.py, changes to the sip files will have no effect. +</p> +<h2>configure.py and make errors</h2> +<dl> +<dt>"Can't find a file or directory"</dt> +<dd> +configure.py first checks to make sure that it can locate and access all of the components PyKDE +depends on. If the directories or files aren't where configure.py thinks they should be, an error +will result and configure.py will exit. Usually these kinds of problems can be solved by adding +command line switches when running configure.py - see the <a href="switches.html">next page</a> for +the available command line options +</dd> +<dt>"Can't write ..." or "Can't create ..."</dt> +<dd> +build.py creates a number of directories and generates Makefiles and a lot of C++ code +(customized for your system). If the user running build.py doesn't have write access to +the directories where PyKDE sources were installed, the build will fail. You need to either +obtain write access, relocate PyKDE someplace where you have write access or (worst choice) +build PyKDE as root. +</dd> +<dt>"Can't remove or create directory"</dt> +<dd> +This happens rarely, but is a quirk of the PyKDE build process. PyKDE will build and make +as an unprivileged user BUT if you did a build of PyKDE previously as root and then attempt +to build PyKDE again as a user, the build will fail. The reason is that configure.py creates a +number of directories and a lot of files. The next time configure.py runs, it will try to delete +these directories and files before re-creating them. If the original directories and files +were owned by root, a user will be unable to delete them and configure.py will fail if run as +a user in that case. +</dd> +<dt>"Can't find PyQt sip files"</dt> +<dd> +You did install them, right? If you build PyQt from sources, the sip files will be there +somewhere (by default, PyQt installs the PyQt sip files in /usr/share/PyQt if built from +source). When you find them, you can tell configure.py where they are with a switch (see +<a href="switches.html">next page</a>). If you installed PyQt from RPMs (either downloaded or +from your distribution), the sip files are usually in a "devel" RPM for PyQt, which also needs +to be installed if you want to build PyKDE from sources. +</dd> +<dt>Code generation errors</dt> +<dd> +The PyKDE sources are mostly "sip" files which describe the interface to KDE's C++ libraries +to the sip code generator. These files should be error free. If a sip or code generation error occurs, +please report it to the PyKDE mailing list at <A HREF="mailto:[email protected]"> [email protected] </A> Subscribe to the list +<a href="http://mats.imk.fraunhofer.de/mailman/listinfo/pykde">here</a> +</dd> +<dt>Compile errors</dt> +<dd> +PyKDE should not experience any compile errors. Currently sip 4.0 based compiles will +generate a number of warnings - these can be safely ignored. If errors occur, please report them +to the PyKDE mailing list at <A HREF="mailto:[email protected]"> [email protected] </A>. +Subscribe to the list <a href="http://mats.imk.fraunhofer.de/mailman/listinfo/pykde">here</a> +</dd> +</dl> +<h2>Compile-time errors</h2> +<p> +PyKDE takes a long time to compile on some hardware, however no single module should take more than 25-30 +minutes on any but the slowest hardware. Some gcc versions (for example gcc 4.0.1 on SuSE 10) will hang +if PyKDE C++ files have been generated in "concatenated" mode (see Installation and Switches pages for +more info). If you are using concatenated mode (each module consists of a single large file, instead of +many small files) and PyKDE's compilation hangs, re-run configure.py with the -i switch, then re-run make. +</p> +<p> +PyKDE attempts to identify gcc versions that have problems and select the correct mode automatically. +</p> +<h2>Run-time errors</h2> +<dl> +<dt>importTest.py errors</dt> +<dd> +<p> +All that importTest.py does is try to import each of the PyKDE modules. The most common error that +occurs when running importTest.py is that an unresolved symbol in one of the modules prevents the +module from loading. This can occur because not all KDE library versions contain all of the "official" KDE +classes and members. Although it doesn't occur often, 1 missing method (out of over 10,000) will +prevent a module from loading, and also prevent other modules that depend on the failing module +from loading. The error message will normally print a "mangled" version of the missing method's name: +</p> +<table border="0" width="100%"> +<tr> +<td> +<pre CLASS="PROGRAMLISTING"> + > ImportError: /usr/lib/python2.2/site-packages/libkdecorecmodule.so: + > undefined symbol: _ZNK10KAboutData18copyrightStatementEv +</pre> +</td> +</tr> +</table> +<p> +You can decipher the mangled name to a class and method (in the example above, +KAboutData::copyrightStatement) by running: +</p> +<table border="0" width="100%"> +<tr> +<td> +<pre CLASS="PROGRAMLISTING"> + c++filt <symbolname> + + for example: + + c++filt _ZNK10KAboutData18copyrightStatementEv +</pre> +</td> +</tr> +</table> +<p> +If you can locate the sip file for the class, you can comment out ("//") the missing method, and recompile +(including re-running <i>configure.py</i>. If you can't solve the problem (and even if you do) you should +report it on the PyKDE mailing list at <A HREF="mailto:[email protected]"> [email protected] </A>. Subscribe to the list +</p> +<a href="http://mats.imk.fraunhofer.de/mailman/listinfo/pykde">here</a> +</dd> +<dt>Other run-time errors</dt> +<dd> +At present only the most likely failure modes of PyKDE are tested (contributions of tests/test code +are greatly appreciated). Nearly all of PyKDE is completely machine generated from the KDE h files, +so coding errors are rare but they do happen. PyKDE also uses some classes and methods differently +because it's running from Python and not C++. If you suspect an error, please double-check your +code and review the PyKDE docs to be sure the argument lists and expected return types are what you +thought they were. If the problem persists, report it to the PyKDE mailing list at + <A HREF="mailto:[email protected]"> [email protected] </A>. Subscribe to the list +<a href="http://mats.imk.fraunhofer.de/mailman/listinfo/pykde">here</a>. <b>When reporting errors to the +list, it's always helpful if you provide:</b> +<ul> +<li> +the version of PyKDE you're using +</li> +<li> + a <i>small</i> sample of code that produces the problem. +</li> +</ul> +It's not particularly important whether the error is a PyKDE error or a user error (although +I prefer seeing user errors rather than my own). +</dd> +</dl> +<h2>Distribution-specific Notes</h2> +<h3>SuSE 8.0/8.1</h3> +<p> +During testing of PyKDE for KDE 3.x.x on SuSE 8.0 and 8.1 I +ran into problems with the kjs module insisting on linking to +the KDE2 version of libkjs.so instead of the KDE3. The lib +name/version is the same in both cases, but the libs aren't +compatible. The only solution I found was to: +</p> +<p> +1.Edit (as root) /etc/ld.so.conf from this: +</p> +<table border="0" bgcolor="#E0E0E0" width="100%"> +<tr> +<td> +<pre CLASS="PROGRAMLISTING"> + /opt/kde + /opt/kde2 + /opt/kde3 +</pre> +</td> +</tr> +</table> +<p> + to this: +</p> +<table border="0" bgcolor="#E0E0E0" width="100%"> +<tr> +<td> +<pre CLASS="PROGRAMLISTING"> + /opt/kde3 + /opt/kde + /opt/kde2 +</pre> +</td> +</tr> +</table> +<p> +2. Run (as root) ldconfig +</p> +<p> +3. Re-link. You can save having to rebuild PyKDE and recompile +by simply going into the PyKDE-3.x.x/kjs directory and deleteing +kjshuge.o (or any *.o in the directory) and then rerunning make +and make install (this forces a recompile/relink of the kjs module +only, which is very fast) Don't run configure.py before trying this, +or everything will recompile. +</p> +<p> +Alternatively, if you don't plan on using kjs, you can simply +ignore the fact that it's mis-linked - it won't affect any +other module. +</p> +<h3>SuSE 8.2/9.0</h3> +<p> +Some (but by no means all) versions of the KDE rpms for recent SuSE distributions appear +to have been built with a different version of kfileshare.h than what they ship with. This +version is also in disagreement with the "official" KDE version (as found in the kdelib +source files on kde.org, for example). The "incorrect" versions use a setShared(...) method +with a different argument list that doesn't match the h files. +</p> +<p> +To fix this problem, all versions of the setShared method should be commented out in +kfileshare.sip. +</p> +<h3>Mandrake 9.1</h3><h4>(rpm install - PyKDE-3.8, not 3.11 so far)</h4> +<p> +Some people have had trouble with the Mandrake 9.1 rpms/KDE libs. All +distributions modify KDE in some way and where feasible, PyKDE is +set up to build with the least common denominator. +</p> +<p> +The following exchange is from the PyKDE mailing list. The reply is +from Simon Edwards: +</p> +<table border="0" width="100%"> +<tr> +<td> +<pre CLASS="PROGRAMLISTING"> + > I'm trying to setup PyKDE on my Mandrake 9.1/python 2.2 box but so far I + + > ImportError: /usr/lib/python2.2/site-packages/libkdecorecmodule.so: + > undefined symbol: _ZNK10KAboutData18copyrightStatementEv + + Let me guess. You are using the original KDE version that came with Mandrake + 9.1. :) yeah, there is a problem and the PyKDE rpms for mandrake don't work + with that version. + + What you can do is update your KDE to 3.1.4. That should work. I'm using 3.1.2 + here. You can go here: + + <a href="http://plf.zarb.org/~nanardon/urpmiweb.php"> http://plf.zarb.org/~nanardon/urpmiweb.php</a> + + and follow the directions and remember to select 'Texstar'. Now you will be + able to upgrade KDE using the Mandrake Install tool. Open up the Mandrake + Control Center and go to Install Software, do a search on "kde" and you + should get a big long list of KDE packages. Select the 3.1.4-tex2 ones and + when you are ready hit 'install'. and wait, and wait. :-) +</pre> +</td> +</tr> +</table> +<p> +</p> +<h3>Mandrake 10.x</h3> +<p> +Some people have had trouble compiling with Mandrake 10.x. Mandrake provides a few "non-standard" +h files. This only affects 3 or 4 methods, but is enough to prevent PyKDE from building. PyKDE 4.0 +includes patches that should eliminate this problem. +</p> +<DIV CLASS="NAVFOOTER"> +<HR ALIGN="LEFT" WIDTH="100%"> +<TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" > +<TR> +<TD WIDTH="33%" ALIGN="left" VALIGN="top"><A HREF="install.html" ACCESSKEY="P">Prev</A></TD> +<TD WIDTH="34%" ALIGN="center" VALIGN="top"><A HREF="index.html" ACCESSKEY="H">Home</A></TD> +<TD WIDTH="33%" ALIGN="right" VALIGN="top"><A HREF="switches.html" ACCESSKEY="N">Next</A></TD> +</TR> +<TR> +<TD WIDTH="33%" ALIGN="left" VALIGN="top">Installation</TD> +<TD WIDTH="34%" ALIGN="center" VALIGN="top"> </TD> +<TD WIDTH="33%" ALIGN="right" VALIGN="top">build.py Options</TD> +</TR> +</TABLE> +</DIV> + +</body> +</html> |