redis-py Redundant async-timeout dependency in Redis 5.0.2

The Fix

pip install redis==7.1.0

Based on closed redis/redis-py issue #3174 · PR/commit linked

Production note: Most teams hit this during upgrades or environment changes. Roll out with a canary and smoke critical endpoints (health, OpenAPI/docs) before 100%.

Jump to Verify Open PR/Commit

@@ -36,7 +36,7 @@
     python_requires=">=3.8",
     install_requires=[
-        'async-timeout>=4.0.3',
+        'async-timeout>=4.0.3; python_full_version<"3.11.3"',
     ],

repro.py

Updating dependencies
Resolving dependencies... (11.4s)

Package operations: 1 install, 4 updates, 0 removals

  • Updating python-dateutil (2.8.2 -> 2.9.0.post0)
  • Installing async-timeout (4.0.3)
  • Updating pydantic (2.6.2 -> 2.6.3)
  • Updating email-validator (2.1.0.post1 -> 2.1.1)
  • Updating redis (5.0.1 -> 5.0.2)

Writing lock file

verify

Re-run the minimal reproduction on your broken version, then apply the fix and re-run.

fix.md

Option A — Upgrade to fixed release\npip install redis==7.1.0\nWhen NOT to use: Do not use if it changes public behavior or if the failure cannot be reproduced.\n\n

Why This Fix Works in Production

Trigger: Redundant async-timeout dependency in Redis 5.0.2
Mechanism: The async-timeout dependency was re-added unnecessarily for modern Python versions
Why the fix works: Removed the redundant async-timeout dependency for modern Python versions. (first fixed release: 7.1.0).

Production impact:

If left unfixed, the same config can fail only in production (env differences), causing startup failures or partial feature outages.

Why This Breaks in Prod

Shows up under Python 3.12.2 in real deployments (not just unit tests).
The async-timeout dependency was re-added unnecessarily for modern Python versions
Production symptom (often without a traceback): Redundant async-timeout dependency in Redis 5.0.2

Proof / Evidence

GitHub issue: #3174
Fix PR: https://github.com/redis/redis-py/pull/3177
First fixed release: 7.1.0
Reproduced locally: No (not executed)
Last verified: 2026-02-09
Confidence: 0.75
Did this fix it?: Yes (upstream fix exists)
Own content ratio: 0.59

Discussion

High-signal excerpts from the issue thread (symptoms, repros, edge-cases).

Jump to Sources Open on GitHub

“Attaching log from updating redis 5.0.1 to 5.0.2 on Python 3.12.2.”

@Zaczero · 2024-03-03 · source

“@Zaczero Thanks for reporting this. I think you are right but I got a bit confused. How do you think it need to be now?…”

@dvora-h · 2024-03-07 · source

“Yes, totally make sense, thank you! Do you want to fix it or want me to do it?”

@dvora-h · 2024-03-07 · source

“I usually avoid doing such small PRs but suree https://github.com/redis/redis-py/pull/3177. Heads up, I did not complete the checklist.”

@Zaczero · 2024-03-07 · source

Failure Signature (Search String)

Redundant async-timeout dependency in Redis 5.0.2
The `async-timeout` dependency was originally removed in https://github.com/redis/redis-py/pull/2602 due to its redundancy in modern Python.

Copy-friendly signature

signature.txt

Failure Signature
-----------------
Redundant async-timeout dependency in Redis 5.0.2
The `async-timeout` dependency was originally removed in https://github.com/redis/redis-py/pull/2602 due to its redundancy in modern Python.

Error Message

Signature-only (no traceback captured)

error.txt

Error Message
-------------
Redundant async-timeout dependency in Redis 5.0.2
The `async-timeout` dependency was originally removed in https://github.com/redis/redis-py/pull/2602 due to its redundancy in modern Python.

Minimal Reproduction

repro.py

Updating dependencies
Resolving dependencies... (11.4s)

Package operations: 1 install, 4 updates, 0 removals

  • Updating python-dateutil (2.8.2 -> 2.9.0.post0)
  • Installing async-timeout (4.0.3)
  • Updating pydantic (2.6.2 -> 2.6.3)
  • Updating email-validator (2.1.0.post1 -> 2.1.1)
  • Updating redis (5.0.1 -> 5.0.2)

Writing lock file

Environment

Python: 3.12.2

What Broke

Users experienced installation issues due to the redundant async-timeout dependency.

Why It Broke

The async-timeout dependency was re-added unnecessarily for modern Python versions

Fix Options (Details)

Option A — Upgrade to fixed release Safe default (recommended)

pip install redis==7.1.0

When NOT to use: Do not use if it changes public behavior or if the failure cannot be reproduced.

Use when you can deploy the upstream fix. It is usually lower-risk than long-lived workarounds.

Fix reference: https://github.com/redis/redis-py/pull/3177

First fixed release: 7.1.0

Last verified: 2026-02-09. Validate in your environment.

When NOT to Use This Fix

Do not use if it changes public behavior or if the failure cannot be reproduced.

Verify Fix

verify

Re-run the minimal reproduction on your broken version, then apply the fix and re-run.

Did This Fix Work in Your Case?

Quick signal helps us prioritize which fixes to verify and improve.

Prevention

Make timeouts explicit and test them (unit + integration) to avoid silent behavior changes.
Instrument retries (attempt count + reason) and alert on spikes to catch dependency slowdowns.

Version Compatibility Table

Version	Status
7.1.0	Fixed

Related Issues

No related fixes found.

Cluster: redis-py:configuration-error redis-py hub redis-py best practices All hubs All clusters

Related clusters: Retry storm Data consistency Race condition

Sources

We don’t republish the full GitHub discussion text. Use the links above for context.

redis-py Redundant async-timeout dependency in Redis 5.0.2 (Fix)