30秒学会 Python 片段 – Find parity outliers

Finds the items that are parity outliers in a given list.

• Use collections.Counter with a list comprehension to count even and odd values in the list.
• Use collections.Counter.most_common() to get the most common parity.
• Use a list comprehension to find all elements that do not match the most common parity.

代码实现

from collections import Counter

def find_parity_outliers(nums):
  return [
    x for x in nums
    if x % 2 != Counter([n % 2 for n in nums]).most_common()[0][0]
  ]

使用样例

find_parity_outliers([1, 2, 3, 4, 6]) # [1, 3]

翻译自：https://www.30secondsofcode.org/python/s/find-parity-outliers