class Patient(object): ''' This is something which I forgot ''' # status = "patient" def __init__(self, name, age): self.name = name self.age = age self.conditions = [] def get_details(self): print(f"Patient Record: {self.name} ,{self.age} Years Current Information: {self.conditions}.") def add_info(self, information): self.conditions.append(information) class Infant(Patient): # vaccination =[] -- Without this throwing error but not in lecture tutorial def __int__(self, name, age): self.vaccination = [] super().__init__(name, age) def add_vac(self, vaccine): self.vaccination.append(vaccine) def get_details(self): print(f"Patient record: {self.name},{self.age} " f"Patient condition: {self.conditions} " f"Patient has had {self.vaccination} " f"\n{self.name} is an infant, has he had all his checks?") archie = Infant("archie", 4) archie.add_vac("NMR") archie.get_details() Traceback (most recent call last): File "C:\Users\ASUS\PycharmProjects\Python365\Worksheet1.py", line 301, in <module> archie.add_vac("NMR") File "C:\Users\ASUS\PycharmProjects\Python365\Worksheet1.py", line 291, in add_vac self.vaccination.append(vaccine) AttributeError: 'Infant' object has no attribute 'vaccination' Both code and the error attached code seems identical with Gliss notebook but getting an error (solution I knew too i.e declaring Vaccine variable on Class level but why??)

Hey Mayank, Thank you for reaching out! Inside the Infant class, the __init__ function is misspelled as __int__. That's what causes the trouble. Kind regards, 365 Hristina

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Mayank Mittal

Last answered:

16 Dec 2022

Posted on:

15 Dec 2022

Error in Self.vaccination.append(vaccine)

in Python Programmer Bootcamp / Inheritance

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Hristina Hristova

Instructor

Posted on:

16 Dec 2022

Error in Self.vaccination.append(vaccine)

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