Create inheritence_01.py

Author: keshavsingh4522

exception_handling/inheritence_01.py

@@ -0,0 +1,49 @@
+class father:
+ def __init__(self):
+  self.fage=int(input('enter father age: '))
+  if self.fage<=0:
+   raise ValueError('age must be grater then zero')
+ def display(self):
+  print('Father age is: ',self.fage)
+class son(father):
+ def __init__(self):
+  super().__init__()
+  self.sage=int(input('enter son age: '))
+  if self.sage<=0:
+   raise ValueError('age must be +ve')
+  if self.sage>=self.fage:
+   raise ValueError('son age must be less then father age')
+ def display(self):
+  print('son age is: ',self.sage)
+while True:
+ try:
+  f=father()
+ except Exception as e:
+  print(e)
+ else:
+  f.display()
+  break
+while True:
+ try:
+  s=son()
+ except Exception as e:
+  print(e)
+ else:
+  s.display()
+  break
+'''
+output:
+enter father age: -9
+age must be grater then zero
+enter father age: 45
+Father age is:  45
+enter father age: 67
+enter son age: -34
+age must be +ve
+enter father age: 98
+enter son age: 101
+son age must be less then father age
+enter father age: 67
+enter son age: 45
+son age is:  45
+'''