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  1. import pickle
  2. from collections import defaultdict
  3.  
  4. def dd():
  5.     return defaultdict(int)
  6.  
  7. dict1 = defaultdict(dd)
  8.  
  9. dict1['foo']['bar'] = 2
  10.  
  11. tmp = pickle.dumps(dict1)
  12. new = pickle.loads(tmp)
  13.  
  14. print(new)
Success #stdin #stdout 0.02s 9760KB
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stdin
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Standard input is empty
stdout
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defaultdict(<function dd at 0x2b746afeb1e0>, {'foo': defaultdict(<class 'int'>, {'bar': 2})})
https://ideone.com/ZoNKnh
language:
Python 3 (python  3.9.5)
created:
3 years ago
visibility:
public

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