160c160
< if kwargs.has_key('desc'):
---
> if 'desc' in kwargs:
165c165
< if kwargs.has_key('default'):
---
> if 'default' in kwargs:
1227c1227
< if init_dict.has_key('map'):
---
> if 'map' in init_dict:
1234c1234
< elif init_dict.has_key('vals'):
---
> elif 'vals' in init_dict:
1858c1858
< if memo.has_key(self):
---
> if self in memo:
1981c1981
< if memo.has_key(self):
---
> if self in memo: