remove debug_templates untruths related to issue #491

1 files changed, 5 insertions, 58 deletions

diff --git a/docs/narr/templates.rst b/docs/narr/templates.rst
index 11318d9eb..ed700f7b4 100644
--- a/docs/narr/templates.rst
+++ b/docs/narr/templates.rst
@@ -593,56 +593,11 @@ extension so that these ``svn:ignore`` patterns work.
 .. index::
    pair: debugging; templates
 
-.. _debug_templates_section:
+Debugging Templates
+-------------------
 
-Nicer Exceptions in Chameleon Templates
----------------------------------------
-
-The exceptions raised by Chameleon templates when a rendering fails
-are sometimes less than helpful.  :app:`Pyramid` allows you to
-configure your application development environment so that exceptions
-generated by Chameleon during template compilation and execution will
-contain nicer debugging information.
-
-.. warning:: Template-debugging behavior is not recommended for
-             production sites as it slows renderings; it's usually
-             only desirable during development.
-
-In order to turn on template exception debugging, you can use an
-environment variable setting or a configuration file setting.
-
-To use an environment variable, start your application under a shell
-using the ``PYRAMID_DEBUG_TEMPLATES`` operating system environment
-variable set to ``1``, For example:
-
-.. code-block:: text
-
-  $ PYRAMID_DEBUG_TEMPLATES=1 bin/pserve myproject.ini
-
-To use a setting in the application ``.ini`` file for the same
-purpose, set the ``pyramid.debug_templates`` key to ``true`` within
-the application's configuration section, e.g.:
-
-.. code-block:: ini
-  :linenos:
-
-  [app:main]
-  use = egg:MyProject
-  pyramid.debug_templates = true
-
-With template debugging off, a :exc:`NameError` exception resulting
-from rendering a template with an undefined variable
-(e.g. ``${wrong}``) might end like this:
-
-.. code-block:: text
-
-  File "...", in __getitem__
-    raise NameError(key)
-  NameError: wrong
-
-Note that the exception has no information about which template was
-being rendered when the error occured.  But with template debugging
-on, an exception resulting from the same problem might end like so:
+A :exc:`NameError` exception resulting from rendering a template with an
+undefined variable (e.g. ``${wrong}``) might will end like this:
 
 .. code-block:: text
 
@@ -660,17 +615,9 @@ on, an exception resulting from the same problem might end like so:
 
     NameError: wrong
 
-The latter tells you which template the error occurred in, as well as
+The output tells you which template the error occurred in, as well as
 displaying the arguments passed to the template itself.
 
-.. note::
-
-   Turning on ``pyramid.debug_templates`` has the same effect as using the
-   Chameleon environment variable ``CHAMELEON_DEBUG``.  See `Chameleon
-   Environment Variables
-   <http://chameleon.repoze.org/docs/latest/config.html#environment-variables>`_
-   for more information.
-
 .. index::
    single: template internationalization
    single: internationalization (of templates)