Created
March 3, 2017 17:17
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cat test.csv | sort | python dedup.py
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| import itertools | |
| import sys | |
| for k, s in itertools.groupby(sys.stdin.readlines(), lambda x: x.split(",")[0]): | |
| sys.stdout.write(next(s)) |
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| a | 2 | |
|---|---|---|
| b | 3 | |
| a | 3 | |
| c | 3 | |
| c | 3 |
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