537c537
< elif cls.init_keywords.has_key(key):
---
> elif key in cls.init_keywords:
616c616
< if cls.keywords.has_key(attr):
---
> if attr in cls.keywords:
620c620
< if cls._ports.has_key(attr):
---
> if attr in cls._ports:
655c655
< if cls._values.has_key(attr):
---
> if attr in cls._values:
658c658
< if cls._children.has_key(attr):
---
> if attr in cls._children:
1161c1161
< elif memo_dict.has_key(self):
---
> elif self in memo_dict:
1177c1177
< if self._ports.has_key(attr):
---
> if attr in self._ports:
1180c1180
< if self._values.has_key(attr):
---
> if attr in self._values:
1183c1183
< if self._children.has_key(attr):
---
> if attr in self._children:
1209c1209
< if self._ports.has_key(attr):
---
> if attr in self._ports:
1297c1297
< if self._children.has_key(name):
---
> if name in self._children: