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  1. import sys
  2. import csv
  3.  
  4. my_file = sys.stdin
  5. a = {}
  6.  
  7. for name, score in csv.reader(my_file):
  8. a[name] = max(score, a.get(name, score))
  9.  
  10. print(a)
Success #stdin #stdout 0.02s 30240KB
stdin
alex, 1
kate, 4
kate, 2
alex, 3
john, 1
stdout
{'alex': ' 3', 'kate': ' 4', 'john': ' 1'}