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| | | """ A :term:`tween` factory which produces a tween that catches an |
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| | | exception raised by downstream tweens (or the main Pyramid request |
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| | | handler) and, if possible, converts it into a Response using an |
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| | | :term:`exception view`.""" |
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| | | :term:`exception view`. |
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| | | |
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| | | .. versionchanged:: 1.9 |
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| | | The ``request.response`` will be remain unchanged even if the tween |
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| | | handles an exception. Previously it was deleted after handling an |
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| | | exception. |
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| | | |
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| | | Also, ``request.exception`` and ``request.exc_info`` are only set if |
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| | | the tween handles an exception and returns a response otherwise they |
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| | | are left at their original values. |
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| | | |
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| | | """ |
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| | | |
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| | | def excview_tween(request): |
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| | | try: |
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