old_contents: import cryptanalib as ca
  import feathermodules
  
  def break_columnar_transposition(ciphertexts):
     arguments=feathermodules.current_options
     results = []
     for ciphertext in ciphertexts:
        result = ca.break_columnar_transposition(ciphertext, num_answers=int(arguments['num_answers']))
        result = '\n'.join(result)
        results.append(result)
     print 'Best results of columnar transposition solve(s):'
     print '-'*80
     print '\n'.join(results)
     return results
  
  
  feathermodules.module_list['column_trans'] = {
     'attack_function':break_columnar_transposition,
     'type':'classical',
     'keywords':['transposition'],
     'description':'A brute force attack against columnar transposition ciphers.',
     'options':{'num_answers':'3'}
  }
  
new_contents: import cryptanalib as ca
  import feathermodules
  
  def break_columnar_transposition(ciphertexts):
     arguments=feathermodules.current_options
     results = []
     for ciphertext in ciphertexts:
        result = ca.break_columnar_transposition(ciphertext, num_answers=int(arguments['num_answers']))
        result = [candidate[0] for candidate in result]
        result = 'Ciphertext: ' + ciphertext[:40] + '...\n' + '\n'.join(result)
        results.append(result)
     print 'Best results of columnar transposition solve(s):'
     print '-'*80
     print '\n'.join(results)
     return results
  
  
  feathermodules.module_list['column_trans'] = {
     'attack_function':break_columnar_transposition,
     'type':'classical',
     'keywords':['transposition'],
     'description':'A brute force attack against columnar transposition ciphers.',
     'options':{'num_answers':'3'}
  }
  
subject: Fix for #71