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  1. animals = ['Cat', 'Dog', 'Elephant']
  2. for animal in animals:
  3. print(animal, id(animal))
  4. for animal in animals:
  5. if len(animal) > 3:
  6. animal = animal[:3]
  7. print(animal, len(animal), id(animal))
  8. for animal in animals:
  9. print(animal, len(animal), id(animal))
  10.  
  11. #https://pt.stackoverflow.com/q/344754/101
Success #stdin #stdout 0.01s 27656KB
stdin
Standard input is empty
stdout
Cat 47525564089488
Dog 47525564089712
Elephant 47525564632048
Cat 3 47525564089488
Dog 3 47525564089712
Ele 3 47525564608160
Cat 3 47525564089488
Dog 3 47525564089712
Elephant 8 47525564632048