Changes between Version 2 and Version 3 of TracModPython
- Timestamp:
- Apr 4, 2011, 10:40:05 PM (14 years ago)
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TracModPython
v2 v3 4 4 Trac supports [http://www.modpython.org/ mod_python], which speeds up Trac's response times considerably, especially compared to [TracCgi CGI], and permits use of many Apache features not possible with [wiki:TracStandalone tracd]/mod_proxy. 5 5 6 These instructions are for Apache 2; if you are still using Apache 1.3, you may have some luck with [wiki:TracModPython2.7 TracModPython2.7]. 6 These instructions are for Apache 2; if you are still using Apache 1.3, you may have some luck with [trac:wiki:TracModPython2.7 TracModPython2.7]. 7 8 == A Word of Warning == 9 10 As of 16^th^ June 2010, the mod_python project is officially dead. If you are considering using mod_python for a new installation, '''please don't'''! There are known issues which will not be fixed and there are now better alternatives. Check out the main TracInstall pages for your target version for more information. 7 11 8 12 == Simple configuration == … … 21 25 (Still on Debian) after you have installed mod_python, you must enable the modules in apache2 (equivalent of the above Load Module directive): 22 26 {{{ 23 a2enmod mod_python27 a2enmod python 24 28 }}} 25 29 On Fedora use, using yum: … … 34 38 PythonInterpreter main_interpreter 35 39 PythonHandler mod_python.testhandler 40 Order allow,deny 41 Allow from all 36 42 </Location> 37 43 }}} … … 46 52 PythonOption TracEnv /var/trac/myproject 47 53 PythonOption TracUriRoot /projects/myproject 54 Order allow,deny 55 Allow from all 48 56 </Location> 49 57 }}} … … 74 82 }}} 75 83 84 or you can uncompress the Genshi egg to resolve problems extracting from it. 76 85 === Configuring Authentication === 77 86 … … 149 158 150 159 160 === Setting the Python Egg Cache === 161 162 If the Egg Cache isn't writeable by your Web server, you'll either have to change the permissions, or point Python to a location where Apache can write. This can manifest itself as a ''500 internal server error'' and/or a complaint in the syslog. 163 164 {{{ 165 #!xml 166 <Location /projects/myproject> 167 ... 168 PythonOption PYTHON_EGG_CACHE /tmp 169 ... 170 </Location> 171 }}} 172 151 173 152 174 === Setting the !PythonPath === … … 228 250 * Try using `<LocationMatch>` instead of `<Location>` 229 251 * <Location /> may, in your server setup, refer to the complete host instead of simple the root of the server. This means that everything (including the login directory referenced below) will be sent to python and authentication does not work (i.e. you get the infamous Authentication information missing error). If this applies to you, try using a sub-directory for trac instead of the root (i.e. /web/ and /web/login instead of / and /login). 252 * Depending on apache's `NameVirtualHost` configuration, you may need to use `<VirtualHost *:80>` instead of `<VirtualHost *>`. 230 253 231 254 For a virtual host that supports multiple projects replace "`TracEnv`" /var/trac/myproject with "`TracEnvParentDir`" /var/trac/ … … 266 289 Using <Location /> together with `SetHandler` resulted in having everything handled by mod_python, which leads to not being able download any CSS or images/icons. I used <Location /trac> `SetHandler None` </Location> to circumvent the problem, though I do not know if this is the most elegant solution. 267 290 291 === Problem with zipped egg === 292 293 It's possible that your version of mod_python will not import modules from zipped eggs. If you encounter an `ImportError: No module named trac` in your Apache logs but you think everything is where it should be, this might be your problem. Look in your site-packages directory; if the Trac module appears as a ''file'' rather than a ''directory'', then this might be your problem. To rectify, try installing Trac using the `--always-unzip` option, like this: 294 295 {{{ 296 easy_install --always-unzip Trac-0.12b1.zip 297 }}} 298 268 299 === Using .htaccess === 269 300 … … 286 317 }}} 287 318 288 The TracUriRootis obviously the path you need to enter to the browser to get to the trac (e.g. domain.tld/projects/trac)319 The `TracUriRoot` is obviously the path you need to enter to the browser to get to the trac (e.g. domain.tld/projects/trac) 289 320 290 321 === Additional .htaccess help === … … 316 347 }}} 317 348 318 See also [ [http://subversion.tigris.org/faq.html#reposperms]]349 See also [http://subversion.tigris.org/faq.html#reposperms] 319 350 320 351 === FreeBSD issues === … … 322 353 323 354 If you compiled and installed apache2, apache wouldn´t support threads (cause it doesn´t work very well on FreeBSD). You could force thread support when running ./configure for apache, using --enable-threads, but this isn´t recommendable. 324 The best option [ [http://modpython.org/pipermail/mod_python/2006-September/021983.html seems to be]] adding to /usr/local/apache2/bin/ennvars the line355 The best option [http://modpython.org/pipermail/mod_python/2006-September/021983.html seems to be] adding to /usr/local/apache2/bin/ennvars the line 325 356 326 357 {{{ … … 334 365 If this is not the case, it's possible that you're using Subversion libraries that are binary incompatible with the apache ones (an incompatibility of the `apr` libraries is usually the cause). In that case, you also won't be able to use the svn modules for Apache (`mod_dav_svn`). 335 366 336 You also need a recent version of `mod_python` in order to avoid a runtime error ({{{argument number 2: a 'apr_pool_t *' is expected}}}) due to the default usage of multiple sub-interpreters. 3.2.8 ''should'' work, though it's probably better to use the workaround described in #3371, in order to force the use of the main interpreter:367 You also need a recent version of `mod_python` in order to avoid a runtime error ({{{argument number 2: a 'apr_pool_t *' is expected}}}) due to the default usage of multiple sub-interpreters. 3.2.8 ''should'' work, though it's probably better to use the workaround described in [trac:#3371 #3371], in order to force the use of the main interpreter: 337 368 {{{ 338 369 PythonInterpreter main_interpreter 339 370 }}} 340 This is anyway the recommended workaround for other well-known issues seen when using the Python bindings for Subversion within mod_python ( #2611, #3455). See in particular Graham Dumpleton's comment in [comment:ticket:3455:9#3455] explaining the issue.371 This is anyway the recommended workaround for other well-known issues seen when using the Python bindings for Subversion within mod_python ([trac:#2611 #2611], [trac:#3455 #3455]). See in particular Graham Dumpleton's comment in [trac:comment:9:ticket:3455 #3455] explaining the issue. 341 372 342 373 === Page layout issues === … … 352 383 353 384 Note: For the above configuration to have any effect it must be put after the configuration of your project root location, i.e. {{{<Location /myproject />}}}. 385 386 Also, setting `PythonOptimize On` seems to mess up the page headers and footers, in addition to hiding the documentation for macros and plugins (see #Trac8956). Considering how little effect the option has, it is probably a good idea to leave it `Off`. 354 387 355 388 === HTTPS issues === … … 371 404 372 405 === Segmentation fault with php5-mhash or other php5 modules === 373 You may encounter segfaults (reported on debian etch) if php5-mhash module is installed. Try to remove it to see if this solves the problem. See debian bug report [ [http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=411487]]374 375 Some people also have troubles when using php5 compiled with its own 3rd party libraries instead of system libraries. Check here [ [http://www.djangoproject.com/documentation/modpython/#if-you-get-a-segmentation-fault]]406 You may encounter segfaults (reported on debian etch) if php5-mhash module is installed. Try to remove it to see if this solves the problem. See debian bug report [http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=411487] 407 408 Some people also have troubles when using php5 compiled with its own 3rd party libraries instead of system libraries. Check here [http://www.djangoproject.com/documentation/modpython/#if-you-get-a-segmentation-fault] 376 409 377 410 ---- 378 See also: TracGuide, TracInstall, [wiki:TracModWSGI ModWSGI], [wiki:TracFastCgi FastCGI], [wiki:TracModPython ModPython],[trac:TracNginxRecipe TracNginxRecipe]411 See also: TracGuide, TracInstall, [wiki:TracModWSGI ModWSGI], [wiki:TracFastCgi FastCGI], [trac:TracNginxRecipe TracNginxRecipe]