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valkey-redis-compat

Drop-in redis-py replacement backed by valkey-py. Migrate from Redis to Valkey without changing a single line of application code.

Русская версия / Russian version

What it does

Layer Before After
import redis loads redis-py loads valkey-py via this shim
redis.Redis(...) redis.client.Redis valkey.client.Valkey (API-compatible)
kombu broker transport redis:// only works through the shim
flask-caching RedisCache needs redis-py works through the shim

The package patches importlib.metadata.version("redis") so that libraries like kombu, which check the installed redis version at import time, work without issues.

Installation

pip install valkey-redis-compat

Quick start

Nothing changes in your application code:

import redis

r = redis.Redis(host="localhost", port=6379, db=0)
r.set("key", "value")
print(r.get("key"))  # b'value'

Under the hood every call goes through valkey-py.

kombu / Celery broker

kombu uses import redis internally for the redis:// broker transport — the shim handles this transparently.

To use valkey:// URLs as a broker, register the transport alias before Celery starts:

from kombu.transport import TRANSPORT_ALIASES

TRANSPORT_ALIASES.setdefault("valkey", "kombu.transport.redis:Transport")
TRANSPORT_ALIASES.setdefault("valkeys", "kombu.transport.redis:Transport")

flask-caching

No changes needed — RedisCache / RedisSentinelCache import redis internally, which this package provides.

Shim coverage

Every public valkey-py submodule is re-exported under the redis namespace:

redis.* maps to
redis valkey
redis.asyncio valkey.asyncio
redis.backoff valkey.backoff
redis.client valkey.client
redis.cluster valkey.cluster
redis.commands valkey.commands
redis.connection valkey.connection
redis.credentials valkey.credentials
redis.exceptions valkey.exceptions
redis.lock valkey.lock
redis.retry valkey.retry
redis.sentinel valkey.sentinel
redis.typing valkey.typing
redis.utils valkey.utils

Nested submodules (redis.asyncio.client, redis.commands.search, etc.) are also covered.

Why not just import valkey as redis?

That works for your code. It does not work for third-party libraries (kombu, flask-caching, celery) that hardcode import redis internally. This package solves both cases at once.

Compatibility

  • Python 3.9 -- 3.13
  • valkey-py >= 6.1.1
  • Tested with kombu 5.x, flask-caching 2.x

License

MIT

Metadata

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