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  1. example = [(1,100), (1,50), (2,50), (1,100), (3,100), (2,50), (3,50)]
  2. total = float(sum(v for k, v in example))
  3.  
  4. example_dict = {}
  5. for k,v in example:
  6.      example_dict[k] = example_dict.get(k, 0) + v * 100 / total
  7.  
  8. print example_dict
Success #stdin #stdout 0.03s 6356KB
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{1: 50.0, 2: 20.0, 3: 30.0}
https://ideone.com/UtBA6
language:
Python (cpython 2.7.16)
created:
12 years ago
visibility:
secret

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