Calculate AGE in years

[Kessie1971]

Other question, I try to make a sub classes and when there is no argument then value 0
But get the following error

from datetime import datetime, date

class persoon:
  def __init__(self, naam, sekse, geboortedatum):
    self.naam = naam
    self.sekse = sekse
    self.geboortedatum = datetime.strptime(geboortedatum, '%d-%m-%Y').date()
  
  def getNaam(self):
    return self.naam

  def getGebDatum(self):
    return self.geboortedatum 
  
  def isVrouw(self):
    if self.sekse == "V":
      return True
    else:
      return False

  def isMan(self):
    if self.sekse == "M":
      return True
    else:
      return False   
    
  def leeftijd(self):
    today = date.today()
    age = (today.year - self.geboortedatum.year) 
    return age 

class Docent(persoon):
    def __init__(self, naam, sekse, geboortedatum,*Salaris):
      if(Salaris==None):
          self.Salaris = "0"
      else:
          self.Salaris = Salaris

d1 = Docent("John", "M", "24-04-2000")

print(d1.naam)

Error:
3.4.4 (v3.4.4:737efcadf5a6, Dec 20 2015, 20:20:57) [MSC v.1600 64 bit (AMD64)]
Python Type "help", "copyright", "credits" or "license" for more information.
[evaluate Objectgeoriënteerd programmeren_FeedackVraag4.py]
Traceback (most recent call last):
  File "C:\Python\Objectgeoriënteerd programmeren_FeedackVraag4.py", line 43, in <module>
    print(d1.naam)
builtins.AttributeError: 'Docent' object has no attribute 'naam'

deanhystad write Apr-24-2023, 06:06 PM:
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