diff --git a/pyalchemybiz/config/environment.py b/pyalchemybiz/config/environment.py
index 1c57d9d..5963ee6 100644
--- a/pyalchemybiz/config/environment.py
+++ b/pyalchemybiz/config/environment.py
@@ -12,6 +12,7 @@ import pyalchemybiz.lib.app_globals as app_globals
 import pyalchemybiz.lib.helpers
 from pyalchemybiz.config.routing import make_map
 
+
 def load_environment(global_conf, app_conf):
     """Configure the Pylons environment via the ``pylons.config``
     object
diff --git a/pyalchemybiz/config/middleware.py b/pyalchemybiz/config/middleware.py
index 84ed761..d0eda92 100644
--- a/pyalchemybiz/config/middleware.py
+++ b/pyalchemybiz/config/middleware.py
@@ -12,6 +12,7 @@ from pylons.wsgiapp import PylonsApp
 
 from pyalchemybiz.config.environment import load_environment
 
+
 def make_app(global_conf, full_stack=True, **app_conf):
     """Create a Pylons WSGI application and return it
 
diff --git a/pyalchemybiz/config/routing.py b/pyalchemybiz/config/routing.py
index 1d42332..e685eb8 100644
--- a/pyalchemybiz/config/routing.py
+++ b/pyalchemybiz/config/routing.py
@@ -7,6 +7,7 @@ refer to the routes manual at http://routes.groovie.org/docs/
 from pylons import config
 from routes import Mapper
 
+
 def make_map():
     """Create, configure and return the routes Mapper"""
     map = Mapper(directory=config['pylons.paths']['controllers'],
diff --git a/pyalchemybiz/controllers/customer.py b/pyalchemybiz/controllers/customer.py
index 25550f7..eabdb72 100644
--- a/pyalchemybiz/controllers/customer.py
+++ b/pyalchemybiz/controllers/customer.py
@@ -5,16 +5,17 @@ from pyalchemybiz.model import customer, meta
 
 log = logging.getLogger(__name__)
 
+
 class CustomerController(BaseController):
 
     def index(self):
         sess = meta.Session()
         cust_q = sess.query(customer.Customer)
         c.customers = cust_q.all()
-        return render('/customer.mako')
+        return render('/customer/index.mako')
 
     def edit(self, id):
         sess = meta.Session()
         cust_q = sess.query(customer.Customer)
         c.customer = cust_q.filter(customer.Customer.id==id).one()
-        return c.customer
+        return render('/customer/edit.mako')
diff --git a/pyalchemybiz/controllers/error.py b/pyalchemybiz/controllers/error.py
index 665ac31..1ef899b 100644
--- a/pyalchemybiz/controllers/error.py
+++ b/pyalchemybiz/controllers/error.py
@@ -6,6 +6,7 @@ from pylons.middleware import error_document_template, media_path
 
 from pyalchemybiz.lib.base import *
 
+
 class ErrorController(BaseController):
     """Generates error documents as and when they are required.
 
@@ -14,8 +15,9 @@ class ErrorController(BaseController):
 
     This behaviour can be altered by changing the parameters to the
     ErrorDocuments middleware in your config/middleware.py file.
-    
+
     """
+
     def document(self):
         """Render the error document"""
         page = error_document_template % \
diff --git a/pyalchemybiz/controllers/index.py b/pyalchemybiz/controllers/index.py
index 7d63df0..e959244 100644
--- a/pyalchemybiz/controllers/index.py
+++ b/pyalchemybiz/controllers/index.py
@@ -4,6 +4,7 @@ from pyalchemybiz.lib.base import *
 
 log = logging.getLogger(__name__)
 
+
 class IndexController(BaseController):
 
     def index(self):
diff --git a/pyalchemybiz/controllers/template.py b/pyalchemybiz/controllers/template.py
index 740491b..cbd8898 100644
--- a/pyalchemybiz/controllers/template.py
+++ b/pyalchemybiz/controllers/template.py
@@ -1,5 +1,6 @@
 from pyalchemybiz.lib.base import *
 
+
 class TemplateController(BaseController):
 
     def view(self, url):
diff --git a/pyalchemybiz/lib/app_globals.py b/pyalchemybiz/lib/app_globals.py
index 7f7585f..d650178 100644
--- a/pyalchemybiz/lib/app_globals.py
+++ b/pyalchemybiz/lib/app_globals.py
@@ -1,6 +1,7 @@
 """The application's Globals object"""
 from pylons import config
 
+
 class Globals(object):
     """Globals acts as a container for objects available throughout the
     life of the application
diff --git a/pyalchemybiz/lib/base.py b/pyalchemybiz/lib/base.py
index 1b923c0..7933628 100644
--- a/pyalchemybiz/lib/base.py
+++ b/pyalchemybiz/lib/base.py
@@ -16,6 +16,7 @@ import pyalchemybiz.model as model
 from pyalchemybiz.model import meta
 from sqlalchemy.orm import sessionmaker
 
+
 class BaseController(WSGIController):
 
     def __call__(self, environ, start_response):
diff --git a/pyalchemybiz/model/__init__.py b/pyalchemybiz/model/__init__.py
index 7309801..5ccbee3 100644
--- a/pyalchemybiz/model/__init__.py
+++ b/pyalchemybiz/model/__init__.py
@@ -1,3 +1,4 @@
+"""Data model for pyalchemybiz."""
 import logging
 import sqlalchemy as sa
 from sqlalchemy import orm
@@ -7,9 +8,10 @@ from pyalchemybiz.model import person, customer, product
 
 log = logging.getLogger(__name__)
 
+
 def init_model(engine):
     """Call me before using any of the tables or classes in the model."""
-    
+
     sm = orm.sessionmaker(autoflush=True, transactional=True, bind=engine)
 
     meta.engine = engine
@@ -24,9 +26,9 @@ def init_model(engine):
         'product', meta.metadata, autoload=True, autoload_with=engine)
 
     orm.mapper(person.Person, person.t_person)
-    orm.mapper(customer.Customer, customer.t_customer)
-    customer.Customer.person = orm.relation(person.Person)
+    orm.mapper(customer.Customer, customer.t_customer, properties={
+            'person': orm.relation(person.Person, backref='customer')})
     orm.mapper(product.ProductType, product.t_producttype)
-    orm.mapper(product.Product, product.t_product)
-    product.Product.producttype = orm.relation(
-        product.Product, backref=orm.backref('products', lazy='dynamic'))
+    orm.mapper(product.Product, product.t_product, properties={
+            'producttype': orm.relation(product.ProductType,
+                                        backref='products')})
diff --git a/pyalchemybiz/model/customer.py b/pyalchemybiz/model/customer.py
index 5fe8321..6d3af38 100644
--- a/pyalchemybiz/model/customer.py
+++ b/pyalchemybiz/model/customer.py
@@ -1,5 +1,12 @@
+"""Customer related model elements."""
 t_customer = None
 
+
 class Customer(object):
-    def __str__(self):
-        return "%s %s" % (self.firstname, self.lastname)
+    """Customer model class."""
+
+    def __repr__(self):
+        if self.id is None:
+            return "<Customer: new %s>" % (self.person)
+        else:
+            return "<Customer: %d %s>" % (self.id, self.person)
diff --git a/pyalchemybiz/model/meta.py b/pyalchemybiz/model/meta.py
index 578584a..6eeb4e6 100644
--- a/pyalchemybiz/model/meta.py
+++ b/pyalchemybiz/model/meta.py
@@ -9,6 +9,6 @@ engine = None
 # SQLAlchemy session manager.  Updated by model.init_model().
 Session = None
 
-# Global metadata. If you have multiple databases with overlapping table 
+# Global metadata. If you have multiple databases with overlapping table
 # names, you'll need a metadata for each database.
 metadata = MetaData()
diff --git a/pyalchemybiz/model/person.py b/pyalchemybiz/model/person.py
index d9ee9b4..3f32abe 100644
--- a/pyalchemybiz/model/person.py
+++ b/pyalchemybiz/model/person.py
@@ -1,5 +1,11 @@
 t_person = None
 
+
 class Person(object):
-    def __str__(self):
-        return "%s %s" % (self.firstname, self.lastname)
+
+    def __repr__(self):
+        if self.id is None:
+            return "<Person: new %s %s>" % (self.firstname, self.lastname)
+        else:
+            return "<Person: %d %s %s>" % (self.id, self.firstname,
+                                           self.lastname)
diff --git a/pyalchemybiz/model/product.py b/pyalchemybiz/model/product.py
index 866bf70..67a6b24 100644
--- a/pyalchemybiz/model/product.py
+++ b/pyalchemybiz/model/product.py
@@ -1,8 +1,21 @@
 t_producttype = None
 t_product = None
 
+
 class ProductType(object):
-    pass
+
+    def __repr__(self):
+        if self.id is None:
+            return "<ProductType: new %s>" % (self.name)
+        else:
+            return "<ProductType: %d %s>" % (self.id, self.name)
+
 
 class Product(object):
-    pass
+
+    def __repr__(self):
+        if self.id is None:
+            return "<Product: new %s %s>" % (self.name, self.producttype)
+        else:
+            return "<Product: %d %s %s>" % (self.id, self.name,
+                                            self.producttype)
diff --git a/pyalchemybiz/templates/customer.mako b/pyalchemybiz/templates/customer.mako
deleted file mode 100644
index 8aefd56..0000000
--- a/pyalchemybiz/templates/customer.mako
+++ /dev/null
@@ -1,9 +0,0 @@
-<%inherit file="base.mako" />
-
-<h1>Hallo</h1>
-
-<ul id="customers">
-% for customer in c.customers:
- <li>${customer.firstname}&nbsp;${customer.lastname} [${h.link_to('edit', h.url_for(id=customer.id, action="edit"))}]</li>
-% endfor
-</ul>
diff --git a/pyalchemybiz/templates/customer/index.mako b/pyalchemybiz/templates/customer/index.mako
new file mode 100644
index 0000000..20989c6
--- /dev/null
+++ b/pyalchemybiz/templates/customer/index.mako
@@ -0,0 +1,9 @@
+<%inherit file="/base.mako" />
+
+<h1>Hallo</h1>
+
+<ul id="customers">
+% for customer in c.customers:
+ <li>${h.escape_once(customer)} [${h.link_to('edit', h.url_for(id=customer.id, action="edit"))}]</li>
+% endfor
+</ul>
diff --git a/pyalchemybiz/tests/__init__.py b/pyalchemybiz/tests/__init__.py
index 91ff2e7..1caa487 100644
--- a/pyalchemybiz/tests/__init__.py
+++ b/pyalchemybiz/tests/__init__.py
@@ -32,6 +32,7 @@ test_file = os.path.join(conf_dir, 'test.ini')
 cmd = paste.script.appinstall.SetupCommand('setup-app')
 cmd.run([test_file])
 
+
 class TestController(TestCase):
 
     def __init__(self, *args, **kwargs):
diff --git a/pyalchemybiz/tests/functional/test_customer.py b/pyalchemybiz/tests/functional/test_customer.py
index 5a96361..68f3b62 100644
--- a/pyalchemybiz/tests/functional/test_customer.py
+++ b/pyalchemybiz/tests/functional/test_customer.py
@@ -1,5 +1,6 @@
 from pyalchemybiz.tests import *
 
+
 class TestCustomerController(TestController):
 
     def test_index(self):
diff --git a/pyalchemybiz/tests/functional/test_index.py b/pyalchemybiz/tests/functional/test_index.py
index e1b07cb..536254e 100644
--- a/pyalchemybiz/tests/functional/test_index.py
+++ b/pyalchemybiz/tests/functional/test_index.py
@@ -1,5 +1,6 @@
 from pyalchemybiz.tests import *
 
+
 class TestIndexController(TestController):
 
     def test_index(self):
diff --git a/pyalchemybiz/websetup.py b/pyalchemybiz/websetup.py
index f312c82..651259d 100644
--- a/pyalchemybiz/websetup.py
+++ b/pyalchemybiz/websetup.py
@@ -12,6 +12,7 @@ from pyalchemybiz.config.environment import load_environment
 
 log = logging.getLogger(__name__)
 
+
 def setup_config(command, filename, section, vars):
     """Place any commands to setup pyalchemybiz here"""
     conf = appconfig('config:' + filename)