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Error handler middleware
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Error handling middleware
Usage::
error_caching_wsgi_app = ErrorMiddleware(wsgi_app)
Settings:
``debug``:
If true, then tracebacks will be shown in the browser.
``error_email``:
an email address (or list of addresses) to send exception
reports to
``error_log``:
a filename to append tracebacks to
``show_exceptions_in_wsgi_errors``:
If true, then errors will be printed to ``wsgi.errors``
(frequently a server error log, or stderr).
``from_address``, ``smtp_server``, ``error_subject_prefix``, ``smtp_username``, ``smtp_password``, ``smtp_use_tls``:
variables to control the emailed exception reports
``error_message``:
When debug mode is off, the error message to show to users.
``xmlhttp_key``:
When this key (default ``_``) is in the request GET variables
(not POST!), expect that this is an XMLHttpRequest, and the
response should be more minimal; it should not be a complete
HTML page.
Environment Configuration:
``paste.throw_errors``:
If this setting in the request environment is true, then this
middleware is disabled. This can be useful in a testing situation
where you don't want errors to be caught and transformed.
``paste.expected_exceptions``:
When this middleware encounters an exception listed in this
environment variable and when the ``start_response`` has not
yet occurred, the exception will be re-raised instead of being
caught. This should generally be set by middleware that may
(but probably shouldn't be) installed above this middleware,
and wants to get certain exceptions. Exceptions raised after
``start_response`` have been called are always caught since
by definition they are no longer expected.
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The WSGI application interface.
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A wrapper around the application iterator that will catch
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display or report as necessary.
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This is a supplement used to display standard WSGI information in
the traceback.
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For exception handling outside of a web context
Use like::
import sys
from paste.exceptions.errormiddleware import handle_exception
try:
do stuff
except:
handle_exception(
sys.exc_info(), sys.stderr, html=False, ...other config...)
If you want to report, but not fully catch the exception, call
``raise`` after ``handle_exception``, which (when given no argument)
will reraise the exception.
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<p>Additionally an error occurred while sending the %s report:
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