python leetcode 260. Single Number III

Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements that appear only once.

找出列表中两个只出现一次的数。

Example:

Input:  [1,2,1,3,2,5]
Output: [3,5]

Note:

1. The order of the result is not important. So in the above example, [5, 3] is also correct.
2. Your algorithm should run in linear runtime complexity. Could you implement it using only constant space complexity

class Solution:
    def singleNumber(self, nums):
        """
        :type nums: List[int]
        :rtype: List[int]
        """
        nums = sorted(nums)
        i = 0
        while i < len(nums)-1:
            if nums[i] != nums[i+1]:
                i += 1
            else:
                nums.remove(nums[i])
                nums.remove(nums[i])
        return nums