21     _dict = {'0': '',  variable in DumbDBMTestCase
36         for key in self._dict:
37             f[key] = self._dict[key]
73         self._dict['g'] = f['g'] = "indented"
119         for key in self._dict:
120             self.assertEqual(self._dict[key], f[key])
124         for k in self._dict:
125             f[k] = self._dict[k]
131         dkeys = self._dict.keys()
180             for key in self._dict:
181                 f[key] = self._dict[key]
187             self.assertEqual(sorted(f.keys()), sorted(self._dict))