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  1. class molecule(object):
  2.  
  3.     def __init__(self,name):
  4.         self.natoms = 10
  5.  
  6.     def __iter__(self):
  7.         for i in range(1, self.natoms + 1):
  8.             yield self[i]
  9.  
  10.     def __getitem__(self, i):
  11.         return 'atom{}'.format(i)
  12.  
  13.  
  14. ben = molecule('ben')
  15. ite = iter(ben)
  16. assert next(ite) == 'atom1'
  17. assert next(ite) == 'atom2'
  18. ite2 = iter(ben)
  19. assert next(ite) == 'atom3'
  20. assert next(ite2) == 'atom1'
Success #stdin #stdout 0.02s 9944KB
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https://ideone.com/TK78Ml
language:
Python 3 (python  3.9.5)
created:
8 years ago
visibility:
public

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