ensure special methods have the correct arguments

이 페이지는 아직 한국어로 제공되지 않으며 번역 작업 중입니다. 번역에 관한 질문이나 의견이 있으시면 언제든지 저희에게 연락해 주십시오.

Metadata

ID: python-best-practices/special-methods-arguments

Language: Python

Severity: Error

Category: Best Practices

Description

For all special methods for a class (__add__, __sub__, and more) make sure the method has the correct number of arguments.

Non-Compliant Code Examples

class GFG:
  
    def __init__(self, val):
        self.val = val
          
    def __next__(self, val2, val3): # invalid, we should have only one argument.
        return GFG(self.val + val2.val)
class GFG:
  
    def __init__(self, val):
        self.val = val
          
    def __add__(self, val2, val3): # we should have only two arguments.
        return GFG(self.val + val2.val)

Compliant Code Examples

class GFG:
  
    def __init__(self, val):
        self.val = val
          
    def __add__(self, val2):
        return GFG(self.val + val2.val)
https://static.datadoghq.com/static/images/logos/github_avatar.svg https://static.datadoghq.com/static/images/logos/vscode_avatar.svg jetbrains

Seamless integrations. Try Datadog Code Analysis