Hi,

I'm starting with Pyramid, I have been following  the  section named "Getting 
Started <http://docs.pylonsproject.org/en/latest/docs/pyramid.html>"  I did 
"single fail task" tutorial,
and now I am following the wiki tutorial, I did each step writen in 
Installation<http://docs.pylonsproject.org/projects/pyramid/en/1.4-branch/tutorials/wiki2/installation.html>section
 without any trouble and in the end
I started the application:
(py3Pyramid)tutorial > pserve development.ini --reload
Starting subprocess with file monitor
Starting server in PID 3556.
serving on http://0.0.0.0:6543

Now , when I try  http://127.0.0.1:6543/ in the browser I get:

*Internal Server Error
The server encountered an unexpected internal server error
(generated by waitress)
*
And in the console:

(py3Pyramid)tutorial > pserve development.ini --reload
Starting subprocess with file monitor
Starting server in PID 3556.
serving on http://0.0.0.0:6543
2013-06-09 17:11:19,080 INFO  [sqlalchemy.engine.base.Engine][Dummy-2] 
BEGIN (implicit)
2013-06-09 17:11:19,081 INFO  [sqlalchemy.engine.base.Engine][Dummy-2] 
SELECT models.id AS models_id, models.name AS models_name, models.value AS 
models_value 
FROM models 
WHERE models.name = ?
 LIMIT ? OFFSET ?
2013-06-09 17:11:19,081 INFO  [sqlalchemy.engine.base.Engine][Dummy-2] 
('one', 1, 0)
2013-06-09 17:11:19,255 ERROR [waitress][Dummy-2] Exception when serving /
Traceback (most recent call last):
  File 
"/Users/carlos/Python/virtualenvs/py3Pyramid/lib/python3.2/site-packages/pyramid-1.4.2-py3.2.egg/pyramid/mako_templating.py",
 
line 232, in __call__
    result = template.render_unicode(**system)
  File 
"/Users/carlos/Python/virtualenvs/py3Pyramid/lib/python3.2/site-packages/Mako-0.8.1-py3.2.egg/mako/template.py",
 
line 452, in render_unicode
    as_unicode=True)
  File 
"/Users/carlos/Python/virtualenvs/py3Pyramid/lib/python3.2/site-packages/Mako-0.8.1-py3.2.egg/mako/runtime.py",
 
line 783, in _render
    **_kwargs_for_callable(callable_, data))
  File 
"/Users/carlos/Python/virtualenvs/py3Pyramid/lib/python3.2/site-packages/Mako-0.8.1-py3.2.egg/mako/runtime.py",
 
line 815, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File 
"/Users/carlos/Python/virtualenvs/py3Pyramid/lib/python3.2/site-packages/Mako-0.8.1-py3.2.egg/mako/runtime.py",
 
line 841, in _exec_template
    callable_(context, *args, **kwargs)
  File "pyramid_debugtoolbar_panels_templates_logger_dbtmako", line 35, in 
render_body
  File 
"/Users/carlos/Python/virtualenvs/py3Pyramid/lib/python3.2/site-packages/Mako-0.8.1-py3.2.egg/mako/filters.py",
 
line 29, in legacy_html_escape
*    s = s.replace("&", "&amp;")
TypeError: an integer is required*

Any and all assistance you can provide is graciously appreciated! 

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