def type_check(self, instance):
if not isinstance(instance, ShardedKey):
raise typehints.CompositeTypeHintError(
"ShardedKey type-constraint violated. Valid object instance "
"must be of type 'ShardedKey'. Instead, an instance of '%s' "
"was received." % (instance.__class__.__name__))
try:
typehints.check_constraint(self.key_type, instance.key)
except (typehints.CompositeTypeHintError,
typehints.SimpleTypeHintError):
raise typehints.CompositeTypeHintError(
"%s type-constraint violated. The type of key in 'ShardedKey' "
"is incorrect. Expected an instance of type '%s', "
"instead received an instance of type '%s'." %
(repr(self), typehints._unified_repr(
self.key_type), instance.key.__class__.__name__))
def __repr__(self):
return 'Row(%s)' % ', '.join(
'%s=%s' % (name, typehints._unified_repr(t)) for name,
t in self._fields)
def __repr__(self):
return 'ShardedKey[%s]' % typehints._unified_repr(self.key_type)