too-few-public-methods / R0903

Message emitted:

Too few public methods (%s/%s)

Description:

Used when class has too few public methods, so be sure it's really worth it.

Problematic code:

class Worm:  # [too-few-public-methods]
    def __init__(self, name: str, fruit_of_residence: Fruit):
        self.name = name
        self.fruit_of_residence = fruit_of_residence

    def bore(self):
        print(f"{self.name} is boring into {self.fruit_of_residence}")

Correct code:

dataclass_and_function.py:

import dataclasses


@dataclasses.dataclass
class Worm:
    name: str
    fruit_of_residence: Fruit


def bore(worm: Worm):
    print(f"{worm.name} is boring into {worm.fruit_of_residence}")

function.py:

def bore(fruit: Fruit, worm_name: str):
    print(f"{worm_name} is boring into {fruit}")

larger_api.py:

class Worm:
    def __init__(self, name: str, fruit_of_residence: Fruit):
        self.name = name
        self.fruit_of_residence = fruit_of_residence

    def bore(self):
        print(f"{self.name} is boring into {self.fruit_of_residence}")

    def wiggle(self):
        print(f"{self.name} wiggle around wormily.")

Created by the design checker.