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Answers and rating deltas for
How can I combine values based on some key in python dict just like SQL GROUP BY
| Author | Votes | Δ |
|---|---|---|
| Tom Karzes | 2 | +0.27 |
| RomanPerekhrest | 2 | +0.30 |
| Binyamin Even | 1 | -1.01 |
| Shawn. L | 0 | -3.53 |
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