def get_file(self, key):
        try:
            f = open(os.path.join(self._path, str(key)), 'rb')
        except IOError, e:
            if e.errno == errno.ENOENT:
                raise KeyError('No message with key: %s' % key)
            else:
                raise
        return _ProxyFile(f)
POSTing the approve view will redirect to an explicitly provided a next
dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/MH.get_file--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/tests/regressiontests/comment_tests/tests/moderation_view_tests.py/ApproveViewTests.testApprovePostNext