Question

If the primary key is found, this code prints ‘a’ ‘b’ ‘e’. If not, only ‘a’ is printed. What can cause the exception to be swallowed?

def foo(request, e_pk):
    try:
        pprint('a')
        facet = models.EntryFacet.objects.get(pk=e_pk)
        pprint('b')
    except models.EntryFacet.DoesNotExist:
        pprint('c ' + sys.exc_info()[0])
    except ObjectDoesNotExist:
        pprint('d ' + sys.exc_info()[0])
    pprint('e')
    return render_to_response(...)

Environment: django 1.3, Linux. settings.py has DEBUG = True TEMPLATE_DEBUG = DEBUG

Answer 1

when you try

print('c ' + sys.exc_info()[0])

it raise TypeError: cannot concatenate ‘str’ and ‘type’ objects
so you should use:

print('c %s' % sys.exc_info()[0])

also look at get_object_or_404