python - PyLint W0143 警告 : Comparing against a callable

Question

我尝试使用默认设置测试 pylint 并且(请参阅下面的 python 代码)收到警告:

>pylint pylint_test_01.py
>pylint_test_01.py:24:7: W0143: Comparing against a callable, did you omit the parenthesis? (comparison-with-callable)

如何在不破坏此算法且不禁用 pylint 检查(即使用默认设置)的情况下摆脱此 pylint 警告？
从列表中枚举函数的一般原则应该保留。

'''Test pylint with default settings warnings'''
from random import randint
def sortaray_builtin(arr):
    '''This is built in Python sort function'''
    return sorted(arr.copy())
def sortaray_bubble(arr):
    '''Bubble sorting algorithm -- is a simplest of sorting algorithms. Perfomance: O(N**2)'''
    brr = arr.copy()
    for i, _ in enumerate(brr[:-1]):
        for j in range(i, len(brr)):
            if brr[i] > brr[j]:
                brr[i], brr[j] = brr[j], brr[i]
    return brr

SFUNCTIONS = [
    sortaray_builtin,
    sortaray_bubble
]

ARSIZE = 20
ARRY = [randint(0, ARSIZE) for i in range(ARSIZE)]

for SrtFunc in SFUNCTIONS:
    # Line below cause an W0143: Comparing against a callable, did you omit the parenthesis? (comparison-with-callable)
    if SrtFunc == sortaray_builtin:
        print("Builtin: ", end='', flush=True)
    else:
        print("Bubble : ", end='', flush=True)
    print(SrtFunc(ARRY))

Answer 1

选项 1

您可以禁用某些地方的检查。

if SrtFunc == sortaray_builtin:  # pylint: disable=W0143

更多信息
https://pylint.readthedocs.io/en/latest/user_guide/message-control.html

选项 2

您可以使用 __name__ 获取函数的名称属性。

SrtFunc.__name__ == builtin_sort.__name__

选项 3

与第二种方法相同，但使用 .__doc__

SrtFunc.__doc__ == builtin_sort.__doc__

选项 4

您可以将函数包装在对象中，例如在 dict 中，或者创建一个特殊的类。

class Sorter():
    def __init__(self, func):
        self.sort = func
builtin = Sorter(sortaray_builtin)
bubble = Sorter(sortaray_bubble)
SFUNCTIONS = [ builtin, bubble ]
builtin.sort()