Abstract method does not raise
NotImplementedError PTC-W0053
Anti-pattern
Major
10 months ago
—
2 years old
Abstract method
_iter_trees should raise NotImplementedError19 self.out_var_name = out_var_name
20
21 @abc.abstractmethod
22 def _iter_trees(self):23 pass
24
25 @classmethodAbstract method
_leaf_value should raise NotImplementedError 85 pass
86
87 @abc.abstractmethod
88 def _leaf_value(self): 89 pass
90
91 @staticmethodAbstract method
_decision_type should raise NotImplementedError 81 pass
82
83 @abc.abstractmethod
84 def _decision_type(self): 85 pass
86
87 @abc.abstractmethodAbstract method
_split_value should raise NotImplementedError 77 pass
78
79 @abc.abstractmethod
80 def _split_value(self): 81 pass
82
83 @abc.abstractmethodAbstract method
_missing_node should raise NotImplementedError 73 pass
74
75 @abc.abstractmethod
76 def _missing_node(self): 77 pass
78
79 @abc.abstractmethod
Description
Abstract methods should raise NotImplementeError when they require derived classes
to override the method, or while the class is being developed to indicate that
the real implementation still needs to be added.
Refer to the docs
to read more about NotImplementedError.
Not preferred:
import abc
class Vehicle:
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def method_to_implement(self, input):
return
Preferred:
import abc
class Vehicle:
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def method_to_implement(self, input):
raise NotImplementedError