message: Apply suggestions from code review
  Thanks
diff: @@ -13,13 +13,13 @@ class TestReplacementScan(object):
  res = duckdb_cursor.execute("select count(*) from '%s'"%(filename))
  assert res.fetchone()[0] == 3
  - def test_replacement_scan_relapi(self, duckdb_cursor):
  + def test_replacement_scan_relapi(self):
  pyrel1 = duckdb.query('from (values (42), (84), (120)) t(i)')
  - assert (type(pyrel1) == duckdb.DuckDBPyRelation)
  + assert isinstance(pyrel1, duckdb.DuckDBPyRelation)
  assert (pyrel1.fetchall() == [(42,), (84,), (120,)])
  pyrel2 = duckdb.query('from pyrel1 limit 2')
  - assert (type(pyrel2) == duckdb.DuckDBPyRelation)
  + assert isinstance(pyrel2, duckdb.DuckDBPyRelation)
  assert (pyrel2.fetchall() == [(42,), (84,)])
  pyrel3 = duckdb.query('select i + 100 from pyrel2')
  