class Solution(object):

def removeDuplicates(self, nums):

"""

:type nums: List[int]

:rtype: int

"""

k = 0

i = 0

while i < len(nums):

val = nums[i]

while i + 1 < len(nums) and nums[i+1] == val:

nums.remove(val)

k += 1

i += 1

return len(nums)