[CodeKata] -7

def more_than_half(nums):
  number = {}

  for i in nums:
    if i not in number:
      number[i] = 1
    else:
      number[i] += 1
  
  max_value = max(number.values())

  if max_value <= len(nums)/2:
    return None

  for key, value in number.items():
    if value == max_value:
      return key

def more_than_half(nums):
    half = len(nums) / 2
    params = set(nums)
    for i in params:
      if nums.count(i) > half:
        return i