starting up without Ptah App and devapp. you do everything on your own.

start4.py

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+""" Demonstrate an empty non-bootstrapped Ptah CMS.
+    The goal of this is to exercise removing Ptah App from runtime.
+    You will have to do *everything* yourself.
+"""
+from paste.httpserver import serve
+import memphis
+import transaction
+import pyramid_sqla
+from pyramid import path
+from pyramid.config import Configurator
+
+import ptah
+
+def make_app(global_config, **settings):
+    """ ripped from ptah/__init__.py:initializeSettings """
+
+    config = Configurator(settings=settings)
+    try:
+        # This is magic land.
+        # intializing invokes a memphis scan of PYTHONPATH
+        # What I really want is to 
+        ptah.initialize(None, config, global_config)
+    except memphis.config.StopException:
+        memphis.config.shutdown()
+        raise
+
+    # Pyramid
+    app = config.make_wsgi_app()
+
+    Base = pyramid_sqla.get_base()
+    Base.metadata.create_all()
+
+    config.begin()
+
+    # Memphis, send ApplicationStarting event
+    memphis.config.start(config)
+
+    # Ptah, app initialized
+    config.registry.notify(ptah.AppInitialized(app, config))
+
+    config.end()
+    config.commit()
+
+    # commit possible transaction
+    transaction.commit()
+
+    return app
+
+def main(global_config):
+    app = make_app(global_config)
+    return app
+
+""" In PYTHONPATH we have quite a few modules which have memphis entry points.
+    What we will do now, for cheapness, is just exclude the packages which
+    define behaviors for Ptah.  In the future we can have a nicer example.
+
+    Starting this and going to http://localhost:8080/ you get 404.  There is
+    no ptah_app, we excluded it.  What is left is Ptah Manage, which is in
+    the core Ptah package. http://localhost:8080/ptah-manage/ you can even
+    remove Ptah Manage.  But for now this environment will work fine for
+    demonstration purposes.
+ 
+"""
+
+if __name__ == '__main__':
+    app = main({'settings':'./ptah.ini',
+                'excludes':'ptah_app devapp devpoll'})
+    serve(app, '0.0.0.0')
+