comefrom: <qiyuangong>080_Remove_Duplicates_from_Sorted_Array_II_1.py
code: def removeDuplicates( nums):
      if nums is None:
          return 0
      length = len(nums)
      result = 0
      i = j = 0
      while i < length:
          j = i
          while j < length:
              if nums[j] != nums[i]:
                  break
              j += 1
          if j-i > 2:
              length -= j-i-2
              for k in range(j-i-2):
                  del nums[i]
              result += 2
              j = i+2
          else:
              result += (j-i)
          i = j
      return result
masked: def sample_funcname ( var_0 ) :
      if var_0 is None :
          return 0
      var_4 = len ( var_0 )
      var_5 = 0
      var_7 = var_6 = 0
      while var_7 < var_4 :
          var_6 = var_7
          while var_6 < var_4 :
              if var_0 [ var_6 ] != var_0 [ var_7 ] :
                  break
              var_6 += 1
          if var_6 - var_7 > 2 :
              var_4 -= var_6 - var_7 - 2
              for var_11 in range ( var_6 - var_7 - 2 ) :
                  del var_0 [ var_7 ]
              var_5 += 2
              var_6 = var_7 + 2
          else :
              var_5 += ( var_6 - var_7 )
          var_7 = var_6
      return var_5
  