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Sorted indexes backed by redis.

Project description


Sandsnake is a sorted index implemented in python and uses redis as a backend. It was originally implemented to be used as an indexing system for Sunspear.



Requirements should be handled by setuptools, but if they are not, you will need the following Python packages:

  • nydus

  • redis

  • dateutil


  • hiredis


Creates an sandsnake object that allows to to store and retrieve indexes:

>>> from sandsnake import create_sandsnake_backend
>>> sandsnake = create_sandsnake_backend({
>>>     'backend': 'sandsnake.backends.redis.Redis',
>>>     'settings': {
>>>         'defaults': {
>>>             'host': 'localhost',
>>>             'port': 6379,
>>>             'db': 0,
>>>         },
>>>         'hosts': [{'db': 0}, {'db': 1}, {'host': ''}]
>>>     },
>>> })

Internally, the Redis sandsnake backend uses nydus to distribute your indexes data over your cluster of redis instances.

There are two required arguements:

  • backend: full path to the backend class, which should extend sandsnake.backends.base.BaseSandsnakeBackend

  • settings: settings required to initialize the backend. For the Redis backend, this is a list of hosts in your redis cluster.

Example Usage


from sandsnake import create_sandsnake_backend
import datetime

sandsnake = create_sandsnake_backend({
    "backend": "sandsnake.backends.redis.Redis",
    "settings": {
        "hosts": [{"db": 5}]

#add a value of "abc" to the ``index`` for an ``object``
sandsnake.add("user:1", "homefeed", "abc")
sandsnake.add("user:1", ["homefeed", "recogfeed"], "abc")

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