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  1.  
  2. import heapq
  3.  
  4. def _dummy_func(x, y):
  5.     # should at least print out something
  6.     print(x, y)
  7.     return x < y
  8.  
  9. heapq.cmp_lt = _dummy_func
  10.  
  11. heap = [3, 2, 1]
  12.  
  13. heapq.heapify(heap)
  14.  
Success #stdin #stdout 0s 9024KB
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https://ideone.com/i36pKO
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
public

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