test_with.py 文件源码

def test_exception_swallow(self):
        # bug #262: __exit__ calls cur.close() that hides the exception
        # with another error.
        try:
            with self.conn as conn:
                with conn.cursor('named') as cur:
                    cur.execute("select 1/0")
                    cur.fetchone()
        except psycopg2.DataError, e:
            self.assertEqual(e.pgcode, '22012')
        else:
            self.fail("where is my exception?")