When you run mod_wsgi-express install module the value it outputs as argument for WSGIPythonHome is the root location for the Python installation that mod_wsgi was compiled against when pip installing mod_wsgi.
If that location is ‘/usr’, then you likely used the system Python installation when doing the pip install and the WSGIPythonHome directive in that case is generally redundant as would find that location anyway. If it was some other directory, the pip install used a Python virtual environment. That is okay, just have to be careful if remove the Python virtual environment though as then mod_wsgi will not find it any more and may fail to startup. That is allows pointing out. The install-module will indeed copy the .so into the Apache installation, but that reference back to the Python installation is still part of the configuration. Graham > On 27 Oct 2015, at 11:31 am, Mitch Sundt <[email protected]> wrote: > > Not sure what would happen inside a virtual environment, or if it were run > outside of sudo. When it is run outside of a virtual environment: > > sudo mod_wsgi-express install-module > > Will copy the .so up into the apache2 directory: > > /usr/lib/apach2/modules/mod_wsgi-py27.so > > So it is in the proper location for running under the apache2 daemon. > > The trick to all of this is that apache2 has a naming convention such that > the mod_XXX.so module name in that directory must match the filename in the > mods-available directory (XXX.conf, XXX.load). > > > On Mon, Oct 26, 2015 at 5:19 PM, Graham Dumpleton <[email protected] > <mailto:[email protected]>> wrote: > Great to here it worked. Hope you found the pip/install-module approach > somewhat easier. > > Just be aware that if you pip installed mod_wsgi into a Python virtual > environment, that the WSGIPythonHome directive you would have added based on > what install-module told you, will be to the virtual environment. So make > sure you don’t go blowing away the virtual environment and not recreating it > as mod_wsgi will still be trying to reference it for run time Python > installation. > > Graham > >> On 27 Oct 2015, at 11:14 am, Mitch Sundt <[email protected] >> <mailto:[email protected]>> wrote: >> >> Oops. I forgot >> >> sudo a2enmod wsgi-py27 >> >> before the restart of the server. >> >> >> >> On Mon, Oct 26, 2015 at 5:12 PM, Mitch Sundt <[email protected] >> <mailto:[email protected]>> wrote: >> Ah, the install-module is what I was missing... >> >> (I didn't want to build from source if I could help it). >> >> For those wanting to upgrade via this hybrid approach, on Ubuntu, these are >> the steps I took: >> >> # don't think these are needed in this approach, but I had done them earlier >> >> sudo apt-get install apache2-mpm-worker >> sudo apt-get install apache2-threaded-dev >> >> # install wsgi via the Python mechanism >> >> sudo pip install mod_wsgi >> >> # stop the server >> >> sudo /etc/init.d/apache2 stop >> >> # copy the old wsgi config to the new 4.x filenames >> >> cd /etc/apache2/mods-available >> sudo cp wsgi.conf wsgi-py27.conf >> sudo cp wsgi.load wsgi-py27.load >> >> # remove the old 3.x mod_wsgi >> >> sudo apt-get remove libapache2-mod-wsgi >> >> # install the new 4.x wsgi-py27.so into the apache2 modules directory >> >> sudo mod_wsgi-express install-module >> >> sudo vi wsgi-py27.load >> >> And update that with the information that was sent to stdout by the previous >> command. >> >> And finally, >> >> sudo /etc/init.d/apache2 start >> >> ----------- >> Works great. >> >> >> On Mon, Oct 26, 2015 at 4:14 PM, Graham Dumpleton >> <[email protected] <mailto:[email protected]>> wrote: >> Have you looked through the online documentation, including: >> >> https://code.google.com/p/modwsgi/wiki/InstallationInstructions >> <https://code.google.com/p/modwsgi/wiki/InstallationInstructions> >> >> So in short, uninstall your existing mod_wsgi, then follow the instructions >> there for building and installing from source code. >> >> If you were previously using system mod_wsgi packages, then you will need to >> add to the Apache configuration the base configuration that loads the >> mod_wsgi module as previously the configuration for that would have been >> part of the installed system package. >> >> In most cases any other existing configuration should work the same. >> >> The alternative to using the old configure/make/make install method is to >> use mod_wsgi-express but first pip installing it and then running: >> >> sudo mod_wsgi-express install-module >> >> That will copy the compiled module into the Apache modules directory, then >> edit Apache configuration to load module. The install-module command will >> give you the lines you need to add to the Apache configuration file. >> >> So have a look through that and when get to a specific problem let us know. >> >> Graham >> >>> On 27 Oct 2015, at 10:08 am, Mitch Sundt <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> I have an existing Apache2 deployment of mod-wsgi 3.4.x on Ubuntu >>> >>> I'd simply like to upgrade that to use the latest mod-wsgi 4.x >>> >>> I cannot find any documentation on how to do that (i.e., not use >>> mod_wsgi-express). >>> >>> If I use: >>> >>> pip install mod_wsgi >>> >>> Where is the mod_wsgi.so placed? >>> >>> And can I then update the mods-available/wsgi.load file to point to that >>> location and have everything work? >>> >>> I also could not find find any migration documentation. >>> >>> What changes are required between the 3.x and 4.x versions? >>> >>> >>> >>> >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "modwsgi" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected] >>> <mailto:[email protected]>. >>> To post to this group, send email to [email protected] >>> <mailto:[email protected]>. >>> Visit this group at http://groups.google.com/group/modwsgi >>> <http://groups.google.com/group/modwsgi>. >>> For more options, visit https://groups.google.com/d/optout >>> <https://groups.google.com/d/optout>. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "modwsgi" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] >> <mailto:[email protected]>. >> To post to this group, send email to [email protected] >> <mailto:[email protected]>. >> Visit this group at http://groups.google.com/group/modwsgi >> <http://groups.google.com/group/modwsgi>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. >> >> >> >> -- >> Mitch Sundt >> Software Engineer >> University of Washington >> [email protected] <mailto:[email protected]> >> >> >> -- >> Mitch Sundt >> Software Engineer >> University of Washington >> [email protected] <mailto:[email protected]> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "modwsgi" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] >> <mailto:[email protected]>. >> To post to this group, send email to [email protected] >> <mailto:[email protected]>. >> Visit this group at http://groups.google.com/group/modwsgi >> <http://groups.google.com/group/modwsgi>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. > > > -- > You received this message because you are subscribed to the Google Groups > "modwsgi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at http://groups.google.com/group/modwsgi > <http://groups.google.com/group/modwsgi>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > > -- > Mitch Sundt > Software Engineer > University of Washington > [email protected] <mailto:[email protected]> > > -- > You received this message because you are subscribed to the Google Groups > "modwsgi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at http://groups.google.com/group/modwsgi > <http://groups.google.com/group/modwsgi>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "modwsgi" 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 http://groups.google.com/group/modwsgi. For more options, visit https://groups.google.com/d/optout.
