old_contents: from collections import Counter
  
  def countCollisions(entries):
      collisions = [k for k,v in Counter(entries).items() if v>1]
      num_collisions = len(collisions)
      print('word collisions:',num_collisions,'\n',collisions)
      return num_collisions
  
  def countCollisionsInFile(filename,cv=False,cvc=False):
      entries = []
      with open(filename,'r') as f:
          for line in f:
              # get just the output words
              entry = line.split(',')[0].replace(' \'','')
              if cv:
                  entry = justTwoInitSylls_CV(entry)
              elif cvc:
                  entry = justTwoInitSylls_CVC(entry)
              entries.append(entry)
      return countCollisions(entries)
  
  def countCollisionsInList(entries):
      return countCollisions(entries)
  
  def justTwoInitSylls_CVC(word):
      beforeThisIndex = 0
      afterThisIndex = 0
      for vowel1 in word:
          if vowel1 in 'aeiou':
              afterThisIndex = word.index(vowel1)
              break
      for vowel2 in word[afterThisIndex+1:]:
          if vowel2 in 'aeiou':
              beforeThisIndex = word[afterThisIndex+1:].index(vowel2)+1 + afterThisIndex+1
              break
      if beforeThisIndex!=0:
          word = word[:beforeThisIndex+1]
      return word
  
  def justTwoInitSylls_CV(word):
      beforeThisIndex = 0
      afterThisIndex = 0
      for vowel1 in word:
          if vowel1 in 'aeiou':
              afterThisIndex = word.index(vowel1)
              break
      for vowel2 in word[afterThisIndex+1:]:
          if vowel2 in 'aeiou':
              beforeThisIndex = word[afterThisIndex+1:].index(vowel2)+1 + afterThisIndex+1
              break
      if beforeThisIndex!=0:
          word = word[:beforeThisIndex]
      return word
  
  if __name__ == '__main__': # if running this .py file directly
      fileName = 'output_shortlist.txt'
      print('\n--- whole words: ---')
      countCollisionsInFile(fileName)
      print('\n--- cv: 1st 2 syllables: ---')
      countCollisionsInFile(fileName,cv=True)
      print('\n--- cvc: 1st 2 syllables: ---')
      countCollisionsInFile(fileName,cvc=True)
      
new_contents: from collections import Counter
  
  def countCollisions(entries):
      collisions = [k for k,v in Counter(entries).items() if v>1]
      num_collisions = len(collisions)
      print('word collisions:' + str(num_collisions) + '\n' + str(collisions))
      return num_collisions
  
  def countCollisionsInFile(filename,cv=False,cvc=False):
      entries = []
      with open(filename,'r') as f:
          for line in f:
              # get just the output words
              entry = line.split(',')[0].replace(' \'','')
              if cv:
                  entry = justTwoInitSylls_CV(entry)
              elif cvc:
                  entry = justTwoInitSylls_CVC(entry)
              entries.append(entry)
      return countCollisions(entries)
  
  def countCollisionsInList(entries):
      return countCollisions(entries)
  
  def justTwoInitSylls_CVC(word):
      beforeThisIndex = 0
      afterThisIndex = 0
      for vowel1 in word:
          if vowel1 in 'aeiou':
              afterThisIndex = word.index(vowel1)
              break
      for vowel2 in word[afterThisIndex+1:]:
          if vowel2 in 'aeiou':
              beforeThisIndex = word[afterThisIndex+1:].index(vowel2)+1 + afterThisIndex+1
              break
      if beforeThisIndex!=0:
          word = word[:beforeThisIndex+1]
      return word
  
  def justTwoInitSylls_CV(word):
      beforeThisIndex = 0
      afterThisIndex = 0
      for vowel1 in word:
          if vowel1 in 'aeiou':
              afterThisIndex = word.index(vowel1)
              break
      for vowel2 in word[afterThisIndex+1:]:
          if vowel2 in 'aeiou':
              beforeThisIndex = word[afterThisIndex+1:].index(vowel2)+1 + afterThisIndex+1
              break
      if beforeThisIndex!=0:
          word = word[:beforeThisIndex]
      return word
  
  if __name__ == '__main__': # if running this .py file directly
      fileName = 'output_shortlist.txt'
      print('\n--- whole words: ---')
      countCollisionsInFile(fileName)
      print('\n--- cv: 1st 2 syllables: ---')
      countCollisionsInFile(fileName,cv=True)
      print('\n--- cvc: 1st 2 syllables: ---')
      countCollisionsInFile(fileName,cvc=True)
  
subject: print format