On Sun, Feb 14, 2016 at 2:10 PM, Vijay Varadan <[email protected]> wrote:
> Hey Ryan, > > > > Nailed it! :-D > > > > The issue was with the wsgi.conf file in /etc/apache2/mods-enabled – * > WSGIPythonOptimize > 2 * was set on the server that rendered pages without headers / footers, > but was * WSGIPythonOptimize 0 * on the 2 servers (including the new > built-from-scratch virtual machine) where Genshi was working. > > > > It looks like the Trac / Genshi has an issue with optimizations turned on. > The comment for this setting indicates that this might be the case: > > > > #WSGIPythonOptimize: Enables basic Python optimisation features. > > # > > #Sets the level of Python compiler optimisations. The default is '0' > > #which means no optimisations are applied. > > #Setting the optimisation level to '1' or above will have the effect > > #of enabling basic Python optimisations and changes the filename > > #extension for compiled (bytecode) files from .pyc to .pyo. > > #When the optimisation level is set to '2', doc strings will not be > > #generated and retained. This will result in a smaller memory > footprint, > > #but may cause some Python packages which interrogate doc strings in > some > > #way to fail. > > > > I changed the setting to 0 and headers and footers began rendering once > again. > > > > Thanks for staying with me through this. Appreciate your patience a ton. > > > > Should I edit the wiki and put in a note to indicate that when running > Trac under WSGI, python optimizations should be turned off? > > > > Cheers, > > Vijay > Great find! Yes, please do edit the page to add your findings. I've checked all the servers that I manage which use mod_wsgi and WSGIPythonOptimize has the default value of 0. It would be interesting to know if the pages render correctly wth WSGIPythonOptimize = 1. Maybe we just need to alert users against WSGIPythonOptimize = 2. However, there may be another reason to avoid using WSGIPythonOptimize = 1, which is #12004. I am not sure yet whether WSGIPythonOptimize = 1 has the same effect as -o, but it does sound like it's the case. http://trac.edgewall.org/ticket/12004 https://docs.python.org/2.7/using/cmdline.html?highlight=#cmdoption-O - Ryan -- You received this message because you are subscribed to the Google Groups "Trac Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/trac-users. For more options, visit https://groups.google.com/d/optout.
