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Typo in `sales_rank` code example

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Nikita Sobolev 2021-08-06 20:06:09 +03:00 committed by GitHub
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solutions/system_design/sales_rank/README.md
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@ -126,7 +126,7 @@ class SalesRanker(MRJob):
if self.within_past_week(timestamp): if self.within_past_week(timestamp):
yield (category_id, product_id), quantity yield (category_id, product_id), quantity
def reducer(self, key, value): def reducer(self, key, values):
"""Sum values for each key. """Sum values for each key.
(category1, product1), 2 (category1, product1), 2