def __setitem__(self, key, value):
if key not in self.fields:
self.fields[key] = Field() #if key does not exist, then create a new one in self.fields (ie dynamic list)
self._values[key] = value
def __setitem__(self, key, value):
if key not in self.fields:
self.fields[key] = Field() #if key does not exist, then create a new one in self.fields (ie dynamic list)
self._values[key] = value