Python: adds ZCOUNT command #878
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| int: The number of members in the specified score range. | ||
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| Examples: | ||
| >>> await zcount("my_sorted_set", BoundPair(5.0 , true) , InfBound.POS_INF) |
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please add the arg names to the BoundPair example to make it more readable, e.g.:
ScoreLimit(5.0 , is_inclusive=true)
| >>> await zcount("my_sorted_set", BoundPair(5.0 , true) , InfBound.POS_INF) | ||
| 2 # Indicates that there are 2 members with scores between 5.0 (not exclusive) and +inf in the sorted set "my_sorted_set". | ||
| >>> await zcount("my_sorted_set", BoundPair(5.0 , true) , BoundPair(1.0 , false)) | ||
| 1 # Indicates that there is one member with 5.0 < score <= 10.0 in the sorted set "my_sorted_set". |
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in the example you wrote 1.0, in the comment 10.0.
I guess that it's a typo, but what happens if max_score < min_score?
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what happens if key isn't exists? an error returned, or a null?
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If key does not exist, it is treated as an empty sorted set, and the command returns 0.
If max_score < min_score, 0 is returned.
Added this to the doc.
| NEG_INF = "-inf" | ||
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| class BoundPair: |
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BoundPair -> maybe ScoreLimit
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| Args: | ||
| value (float): The score value. | ||
| is_inclusive (bool): Whether the score is inclusive. Defaults to False. |
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Whether the score is inclusive. => Whether the score value is inclusive.
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| class BoundPair: | ||
| """ | ||
| Represents a pair of score and inclusivity in a sorted set. |
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Represents a score limit in a sorted set.
| await redis_client.zcount(key, BoundPair(1, False), BoundPair(3, True)) == 2 | ||
| ) | ||
| assert await redis_client.zcount(key, InfBound.NEG_INF, BoundPair(3, True)) == 3 | ||
| assert await redis_client.zcount(key, InfBound.POS_INF, BoundPair(3, True)) == 0 |
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please add tests for non existing key and max < min
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this test exists (max < min), see:
assert await redis_client.zcount(key, InfBound.POS_INF, BoundPair(3, True)) == 0
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