input: Write a function to format a two-dimensional array as a table. The function should print the array in a tabular format, aligning the columns by their maximum width in each column. If the array is empty, it should print nothing.
  def printTable(array):
      if not array:
          return
      col_width = [max(len(str(x)) for x in col) for col in zip(*array)]
      for row in array:
          print("  ".join(str(x).ljust(col_width[i]) for i, x in enumerate(row)))
  assert printTable([[1, 2, 3], [4, 5, 6], [7, 8, 9]]) == None
  assert printTable([]) == None
output: def printTable(array):
      if not array:
          return
      col_width = [max(len(str(x)) for x in col) for col in zip(*array)]
      for row in array:
          print("  ".join(str(x).ljust(col_width[i]) for i, x in enumerate(row)))