将零点移动到底:CodeWars中的测试失败了吗?

问题描述

问题

问题链接: https://www.codewars.com/kata/52597aa56021e91c93000cb0/train/python

编写一个算法，该算法采用一个数组并将所有零移动到末尾，并保留其他元素的顺序.

Write an algorithm that takes an array and moves all of the zeros to the end, preserving the order of the other elements.

move_zeros([false,1,0,1,2,0,1,3,"a"]) # returns[false,1,1,2,1,3,"a",0,0]

我的代码:

def move_zeros(array):
    list = []
    list2 = []
    for n in array:
        if n is 0:
            list2.append(n)
        else:
            list.append(n)
    return list + list2

样本测试:

Test.describe("Basic tests")
Test.assert_equals(move_zeros([1,2,0,1,0,1,0,3,0,1]),[ 1, 2, 1, 1, 3, 1, 0, 0, 0, 0 ])
Test.assert_equals(move_zeros([9,0.0,0,9,1,2,0,1,0,1,0.0,3,0,1,9,0,0,0,0,9]),[9,9,1,2,1,1,3,1,9,9,0,0,0,0,0,0,0,0,0,0])
Test.assert_equals(move_zeros(["a",0,0,"b","c","d",0,1,0,1,0,3,0,1,9,0,0,0,0,9]),["a","b","c","d",1,1,3,1,9,9,0,0,0,0,0,0,0,0,0,0])
Test.assert_equals(move_zeros(["a",0,0,"b",None,"c","d",0,1,False,0,1,0,3,[],0,1,9,0,0,{},0,0,9]),["a","b",None,"c","d",1,False,1,3,[],1,9,{},9,0,0,0,0,0,0,0,0,0,0])
Test.assert_equals(move_zeros([0,1,None,2,False,1,0]),[1,None,2,False,1,0,0])
Test.assert_equals(move_zeros(["a","b"]),["a","b"])
Test.assert_equals(move_zeros(["a"]),["a"])
Test.assert_equals(move_zeros([0,0]),[0,0])
Test.assert_equals(move_zeros([0]),[0])
Test.assert_equals(move_zeros([False]),[False])
Test.assert_equals(move_zeros([]),[])

我的输出:

• Teste通过了
• [9，0.0，9，1，2，1，1，0.0，3，1，9，9，0，0，0，0，0，0，0，0]应该等于[ 9，9，1，2，1，1，1，3，1，9，9，0，0，0，0，0，0，0，0，0，0]
• Teste通过了
• Teste通过了
• Teste通过了
• Teste通过了
• Teste通过了
• Teste通过了
• Teste通过了
• Teste通过了
• Teste通过了

• Teste Passed
• [9, 0.0, 9, 1, 2, 1, 1, 0.0, 3, 1, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0] should equal [9, 9, 1, 2, 1, 1, 3, 1, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
• Teste Passed
• Teste Passed
• Teste Passed
• Teste Passed
• Teste Passed
• Teste Passed
• Teste Passed
• Teste Passed
• Teste Passed

我的问题:

我相信它会失败，因为0.0不是0.但是我正在努力理解我该怎么写.我正在开始编码，因此我的代码看起来不像pythonic，但是我想那是我必须要实践的事情

I believe it fails because 0.0 is not 0. But I'm struggling to understand how can i write that.I'm begining coding so my code doesn't look pythonic but i guess that's something I must pratice

推荐答案

使用:

n == 0 and n is not False

根据 https://docs.python.org/3/library/stdtypes .html

和

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