What version of mod_wsgi is being used?
What version of Python is that mod_wsgi.so actually compiled for?
To work out the latter, you will need to find mod_wsgi.so in homebrew and run
on it:
otool -L mod_wsgi.so
>From what I have seen homebrew still ships a very old version of mod_wsgi that
>may not even work with Python 3.4.
I also suspect that the homebrew mod_wsgi is not built for Python 3.4 but an
older Python 3 version.
Personally I would recommend not using homebrew mod_wsgi because of it being
out of date.
There are easier ways now to install mod_wsgi using the pip installable
variant. This can still then be made to install a mod_wsgi.so into your Apache
installation allowing you to manually configure Apache if that is really want
you want to do, but if all you are doing is using this to do a simple personal
project, using mod_wsgi-express would likely make more sense.
Anyway, give the version of mod_wsgi and what Python version it is using and
will go from there.
Graham
On 17/02/2015, at 11:41 AM, [email protected] wrote:
> I'm trying to configure a Django test application for a personal project. I
> have previous Django experience, but that was all with Python 2.7.x. I'd
> like to start using 3.x when possible, and this project seems like a good way
> to start.
>
> Backend is a standard Postgres 9.4 installation, Apache 2.4, a
> virtualenvwrapper pointing to the Python 3.4 executable, operating system is
> OSX 10.10. mod_wsgi and mod_wsgi3 have both been installed via homebrew.
>
> However, there are issues getting mod_wsgi and mod_wsgi3 to work with python
> 3. Specifically, `./manage.py runserver 8080` works fine, but when I try to
> use a virtualhost configuration with Apache, I get
>
> mod_wsgi (pid=29906): Target WSGI script
> '/Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py' cannot be
> loaded as Python module.
> mod_wsgi (pid=29906): Exception occurred processing WSGI script
> '/Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py'.
> Traceback (most recent call last):
> File
> "/Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py", line 28,
> in <module>
> application = get_wsgi_application()
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/core/wsgi.py",
> line 14, in get_wsgi_application
> django.setup()
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/__init__.py",
> line 21, in setup
> apps.populate(settings.INSTALLED_APPS)
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/apps/registry.py",
> line 108, in populate
> app_config.import_models(all_models)
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/apps/config.py",
> line 197, in import_models
> self.models_module = import_module(models_module_name)
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py",
> line 37, in import_module
> __import__(name)
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/contrib/auth/models.py",
> line 40, in <module>
> class Permission(models.Model):
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/models/base.py",
> line 125, in __new__
> new_class.add_to_class('_meta', Options(meta, **kwargs))
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/models/base.py",
> line 300, in add_to_class
> value.contribute_to_class(cls, name)
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/models/options.py",
> line 166, in contribute_to_class
> self.db_table = truncate_name(self.db_table,
> connection.ops.max_name_length())
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/__init__.py",
> line 40, in __getattr__
> return getattr(connections[DEFAULT_DB_ALIAS], item)
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/utils.py",
> line 242, in __getitem__
> backend = load_backend(db['ENGINE'])
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/utils.py",
> line 108, in load_backend
> return import_module('%s.base' % backend_name)
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py",
> line 37, in import_module
> __import__(name)
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/contrib/gis/db/backends/postgis/base.py",
> line 2, in <module>
> from django.db.backends.postgresql_psycopg2.base import
> DatabaseWrapper as Psycopg2DatabaseWrapper
> File
> "/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/django/db/backends/postgresql_psycopg2/base.py",
> line 27, in <module>
> raise ImproperlyConfigured("Error loading psycopg2 module: %s" %
> e)
> ImproperlyConfigured: Error loading psycopg2 module:
> dlopen(/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/
> site-packages/psycopg2/_psycopg.so, 2): Symbol not found: _PyBytes_Type
> Referenced from:
> /Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/psycopg2/_psycopg.so
> Expected in: flat namespace
> in
> /Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages/psycopg2/_psycopg.so
>
> My wsgi.py file is
>
> import os, sys, site
>
>
> site.addsitedir("/Users/jason/.virtualenvs/geodev_env3/lib/python3.4/site-packages")
>
> sys.path.append("/Users/jason/projects/geocode_django/geodjango")
>
> sys.path.append("/Users/jason/projects/geocode_django/geodjango/geodjango")
>
> os.environ.setdefault("DJANGO_SETTINGS_MODULE", "geodjango.settings")
>
> with open("/Users/jason/.virtualenvs/geodev_env3/bin/activate_this.py")
> as f:
> code = compile(f.read(),
> "/Users/jason/.virtualenvs/geodev_env3/bin/activate_this.py", "exec")
> exec(code,
> dict(__file__="/Users/jason/.virtualenvs/geodev_env3/bin/activate_this.py"))
>
> from django.core.wsgi import get_wsgi_application
> application = get_wsgi_application()
>
> and virtualhost file is:
>
> LoadModule wsgi_module /usr/local/Cellar/mod_wsgi3/3.5/libexec/mod_wsgi.so
>
> <VirtualHost *:80>
> ServerName dev.geocode.com
> ServerAlias geocode.com
> ServerAdmin [email protected]
>
> DocumentRoot "/Users/jason/projects/geocode_django"
> Alias /static/ /Users/jason/projects/geocode_django/static/
>
> WSGIScriptAlias /
> /Users/jason/projects/geocode_django/geodjango/geodjango/wsgi.py
>
> <Directory /Users/jason/projects/geocode_django/static >
> require all granted
> </Directory>
>
> <Directory /Users/jason/projects/geocode_django/geodjango/geodjango >
> <Files wsgi.py >
> Require all granted
> </Files>
>
> </Directory>
>
> CustomLog /Users/jason/projects/geocode_django/logs/access.log
> combined
> ErrorLog /Users/jason/projects/geocode_django/logs/error.log
>
> </VirtualHost>
>
> My issue is that if I have a python 2.7 virtualenv with the same virtualhost
> with the LoadModule pointing to
>
> LoadModule wsgi_module
> /usr/local/Cellar/mod_wsgi/4.4.7/libexec/mod_wsgi.so
>
> and replace
>
> with open("/Users/jason/.virtualenvs/geodev_env3/bin/activate_this.py")
> as f:
> code = compile(f.read(),
> "/Users/jason/.virtualenvs/geodev_env3/bin/activate_this.py", "exec")
> exec(code,
> dict(__file__="/Users/jason/.virtualenvs/geodev_env3/bin/activate_this.py"))
>
> in wsgi.py with
>
>
> exec(open("/Users/jasonjohns/.virtualenvs/geocode_env/bin/activate_this.py").read())
>
> I can load up the site with the URL `dev.geocode.com`. Otherwise, I get an
> error 500 page with the error output in the log file.
>
> I originally thought this was an issue with psycopg2, and filed a [bug
> report][1]. However, the dev closed the issue as being concerned with
> mod_wsgi, not psycopg.
>
> [1]:https://github.com/psycopg/psycopg2/issues/286#issuecomment-73619287
>
> Is there a solution for OSX virtualenvwrappers to use Python 3 with mod_wsgi
> & apache?
>
>
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