def test_register_on_dict(self):
from psycopg2.extras import Json
psycopg2.extensions.register_adapter(dict, Json)
try:
curs = self.conn.cursor()
obj = {'a': 123}
self.assertEqual(curs.mogrify("%s", (obj,)),
b("""'{"a": 123}'"""))
finally:
del psycopg2.extensions.adapters[dict, ext.ISQLQuote]
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