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  1. def foo(x):
  2. 	a = x
  3. 	def bar():
  4. 		nonlocal a
  5. 		a += 1
  6. 		print(a)
  7. 	return bar
  8.  
  9. f = foo(3)
  10. try:
  11. 	f()
  12. except:
  13. 	print("Crap, integers in closures aren't assignable, since they're value types.")
  14.  
  15. def foo2(x):
  16. 	a = [x]
  17. 	def bar():
  18. 		a[0] += 1
  19. 		print(a[0])
  20. 	return bar
  21.  
  22. f2 = foo2(3)
  23. f2()
  24. f2()
Success #stdin #stdout 0.02s 9936KB
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Standard input is empty
stdout 
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https://ideone.com/Qve5OJ
language:
Python 3 (python  3.9.5)
created:
8 years ago
visibility:
public

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