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  1. import collections
  2.  
  3. result = collections.defaultdict(list)
  4. names = ['ABC', 'ACE', 'BED', 'BRT', 'CCD']
  5. for name in names:
  6.     ch = name[0]
  7.     if len(result[ch]) < 2:
  8.         result[ch].append(name)
  9.  
  10. for ch0 in result:
  11.     print('{}: {}'.format(ch0, result[ch0]))
Success #stdin #stdout 0.02s 8432KB
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stdin
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Standard input is empty
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A: ['ABC', 'ACE']
C: ['CCD']
B: ['BED', 'BRT']
https://ideone.com/ZB1TH8
language:
Python (cpython 2.7.16)
created:
10 years ago
visibility:
public

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