node.py 793 B

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  1. # vim: set fileencoding=utf-8 :
  2. class Node(object):
  3. def __init__(self, value, *nodes):
  4. self.value, self.nodes = value, list(nodes)
  5. self.parent = None
  6. for a in self.nodes:
  7. a.parent = self
  8. def __getitem__(self, n):
  9. return self.nodes[n]
  10. def __setitem__(self, n, node):
  11. self.nodes[n] = node
  12. def __iter__(self):
  13. return iter(self.nodes)
  14. def __len__(self):
  15. return len(self.nodes)
  16. def title(self):
  17. return str(self.value)
  18. class Leaf(object):
  19. def __init__(self, value):
  20. self.value = value
  21. self.parent = None
  22. def __repr__(self):
  23. return repr(self.value)
  24. def __str__(self):
  25. return str(self.value)
  26. def title(self):
  27. return str(self.value)