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  1. #!/usr/bin/env python3
  2.  
  3. class Person(object):
  4.   def __init__(self, first_name, last_name):
  5.     self.first_name = first_name
  6.     self.last_name = last_name
  7.  
  8.   def dele(self):
  9.     del self.last_name
  10.  
  11.   def pr(self):
  12.     if self.last_name:
  13.       print(self.last_name)
  14.     else:
  15.       print('var has been deleted')
  16.  
  17.  
  18. p = Person('qqq', 'www')
  19. p.dele()
  20. p.pr()
Runtime error #stdin #stdout #stderr 0.02s 27656KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
Traceback (most recent call last):
  File "./prog.py", line 20, in <module>
  File "./prog.py", line 12, in pr
AttributeError: 'Person' object has no attribute 'last_name'
https://ideone.com/cWgFBJ
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

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