old_contents: '''
  
  
  >>> IC_FLAG[2]
  array([[1, 3],
         [1, 4]])
  
  
  >>> IC_FLAG[3]
  array([[1, 4, 6],
         [1, 5, 8],
         [1, 6, 9]])
  
  '''
  
  # For Python2 compatibility
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  __metaclass__ = type
  
  import numpy
  
  from .fibonacci import FIBONACCI
  from .tools import grow_list
  from .data import IC_flag
  
  def fib_zeros_array(*argv):
      '''Return array with shape (FIB[argv[0] + 1], ...).
      '''
  
      shape = tuple(FIBONACCI[n+1] for n in argv)
      value = numpy.zeros(shape, int)
      return value
  
  
  @grow_list
  def IC_FLAG(self):
  
      deg = len(self)
      value = fib_zeros_array(deg, deg)
  
      for i, line in enumerate(IC_flag[deg]):
          value[i] = list(map(int, line.split()[1:]))
  
      return value
  
new_contents: '''
  
  
  >>> FLAG_from_IC[2]
  array([[1, 1],
         [3, 4]])
  
  The flag vector of ICC is [1, 6, 9].
  >>> numpy.dot(FLAG_from_IC[3], [0, 0, 1])
  array([1, 6, 9])
  
  >>> FLAG_from_IC[3]
  array([[1, 1, 1],
         [4, 5, 6],
         [6, 8, 9]])
  
  '''
  
  # For Python2 compatibility
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  __metaclass__ = type
  
  import numpy
  
  from .fibonacci import FIBONACCI
  from .tools import grow_list
  from .data import IC_flag
  
  def fib_zeros_array(*argv):
      '''Return array with shape (FIB[argv[0] + 1], ...).
      '''
  
      shape = tuple(FIBONACCI[n+1] for n in argv)
      value = numpy.zeros(shape, int)
      return value
  
  
  @grow_list
  def FLAG_from_IC(self):
  
      deg = len(self)
      value = fib_zeros_array(deg, deg)
  
      for i, line in enumerate(IC_flag[deg]):
          value[:,i] = list(map(int, line.split()[1:]))
  
      return value
  
subject: Rewrite to replace IC_FLAG by FLAG_from_IC.