in Python, How would I go about creating a dictionary out of two lists using a while loop?

in Python, How would I go about creating a dictionary out of two lists using a while loop? I was able to do it with:

def create_dictionary(keys, values):

  # Place code here - refer to function specifics in section below

  dic = {}

  y = 0

  for x in list_keys:

    dic[x]=list_values[y]

    y = y + 1

  return dic

but I need to do it with a while loop