Is it possible for objects of the same type/class to have different data attributes? [duplicate]












0
















This question already has an answer here:




  • One int for every python object [duplicate]

    3 answers




Sorry, if the title seemed a little imprecise.



I'm wondering if there is way of making sure that every instance of an object can have a unique serial number?



class Airplane:
def __init__(self, name, passenger_hold):
self.name = name
self.passenger_hold = passenger_hold

airplane1 = Airplane("Airbus A320", 100)
airplane2 = Airplane("Boeing 747", 250)


How can I make sure that the first airplane has the serial number 0, the second one 1 and so on?










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marked as duplicate by mkrieger1, timgeb python
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Nov 17 '18 at 12:38


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.























    0
















    This question already has an answer here:




    • One int for every python object [duplicate]

      3 answers




    Sorry, if the title seemed a little imprecise.



    I'm wondering if there is way of making sure that every instance of an object can have a unique serial number?



    class Airplane:
    def __init__(self, name, passenger_hold):
    self.name = name
    self.passenger_hold = passenger_hold

    airplane1 = Airplane("Airbus A320", 100)
    airplane2 = Airplane("Boeing 747", 250)


    How can I make sure that the first airplane has the serial number 0, the second one 1 and so on?










    share|improve this question















    marked as duplicate by mkrieger1, timgeb python
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    Nov 17 '18 at 12:38


    This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.





















      0












      0








      0









      This question already has an answer here:




      • One int for every python object [duplicate]

        3 answers




      Sorry, if the title seemed a little imprecise.



      I'm wondering if there is way of making sure that every instance of an object can have a unique serial number?



      class Airplane:
      def __init__(self, name, passenger_hold):
      self.name = name
      self.passenger_hold = passenger_hold

      airplane1 = Airplane("Airbus A320", 100)
      airplane2 = Airplane("Boeing 747", 250)


      How can I make sure that the first airplane has the serial number 0, the second one 1 and so on?










      share|improve this question

















      This question already has an answer here:




      • One int for every python object [duplicate]

        3 answers




      Sorry, if the title seemed a little imprecise.



      I'm wondering if there is way of making sure that every instance of an object can have a unique serial number?



      class Airplane:
      def __init__(self, name, passenger_hold):
      self.name = name
      self.passenger_hold = passenger_hold

      airplane1 = Airplane("Airbus A320", 100)
      airplane2 = Airplane("Boeing 747", 250)


      How can I make sure that the first airplane has the serial number 0, the second one 1 and so on?





      This question already has an answer here:




      • One int for every python object [duplicate]

        3 answers








      python class






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 17 '18 at 13:43









      Ayxan

      1,583316




      1,583316










      asked Nov 17 '18 at 12:32









      FabioFabio

      33




      33




      marked as duplicate by mkrieger1, timgeb python
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      Nov 17 '18 at 12:38


      This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









      marked as duplicate by mkrieger1, timgeb python
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      Nov 17 '18 at 12:38


      This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


























          1 Answer
          1






          active

          oldest

          votes


















          1














          Use a global counter, internal to your class that would give you a new value each time the constructor is called.



          class Airplane:
          counter = 0

          def __init__(self, name, passenger_hold):
          self.name = name
          self.passenger_hold = passenger_hold
          self.serial = Airplane.counter
          Airplane.counter += 1





          share|improve this answer


























          • Thank you for the quick answer. I was able to solve my problem.

            – Fabio
            Nov 17 '18 at 13:41


















          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          Use a global counter, internal to your class that would give you a new value each time the constructor is called.



          class Airplane:
          counter = 0

          def __init__(self, name, passenger_hold):
          self.name = name
          self.passenger_hold = passenger_hold
          self.serial = Airplane.counter
          Airplane.counter += 1





          share|improve this answer


























          • Thank you for the quick answer. I was able to solve my problem.

            – Fabio
            Nov 17 '18 at 13:41
















          1














          Use a global counter, internal to your class that would give you a new value each time the constructor is called.



          class Airplane:
          counter = 0

          def __init__(self, name, passenger_hold):
          self.name = name
          self.passenger_hold = passenger_hold
          self.serial = Airplane.counter
          Airplane.counter += 1





          share|improve this answer


























          • Thank you for the quick answer. I was able to solve my problem.

            – Fabio
            Nov 17 '18 at 13:41














          1












          1








          1







          Use a global counter, internal to your class that would give you a new value each time the constructor is called.



          class Airplane:
          counter = 0

          def __init__(self, name, passenger_hold):
          self.name = name
          self.passenger_hold = passenger_hold
          self.serial = Airplane.counter
          Airplane.counter += 1





          share|improve this answer















          Use a global counter, internal to your class that would give you a new value each time the constructor is called.



          class Airplane:
          counter = 0

          def __init__(self, name, passenger_hold):
          self.name = name
          self.passenger_hold = passenger_hold
          self.serial = Airplane.counter
          Airplane.counter += 1






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 17 '18 at 12:39









          AkshayNevrekar

          4,13491735




          4,13491735










          answered Nov 17 '18 at 12:37









          Matthieu BrucherMatthieu Brucher

          15.3k32140




          15.3k32140













          • Thank you for the quick answer. I was able to solve my problem.

            – Fabio
            Nov 17 '18 at 13:41



















          • Thank you for the quick answer. I was able to solve my problem.

            – Fabio
            Nov 17 '18 at 13:41

















          Thank you for the quick answer. I was able to solve my problem.

          – Fabio
          Nov 17 '18 at 13:41





          Thank you for the quick answer. I was able to solve my problem.

          – Fabio
          Nov 17 '18 at 13:41



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