redis-py redis._compat: global name 'InterruptedError' is

The Fix

pip install redis==7.1.0

Based on closed redis/redis-py issue #845 · 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

@@ -1,6 +1,12 @@
@@ -1,6 +1,12 @@
 """Internal module for Python 2 backwards compatibility."""
+import errno
 import sys

repro.py

# For Python older than 3.5, retry EINTR.
if sys.version_info[0] < 3 or (sys.version_info[0] == 3 and
                               sys.version_info[1] < 5):
    # Adapted from https://bugs.python.org/review/23863/patch/14532/54418
    import socket
    import time
    import errno

    from select import select as _select

    def select(rlist, wlist, xlist, timeout):
        while True:
            try:
                return _select(rlist, wlist, xlist, timeout)
            except InterruptedError:
                continue

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 apply this fix if targeting only Python 3 environments.\n\n

Why This Fix Works in Production

Trigger: redis._compat: global name 'InterruptedError' is not defined
Mechanism: The code uses 'InterruptedError', which is not defined in Python 2
Why the fix works: Defined `InterruptedError` as `OSError` if not defined like in Python 2, fixing compatibility issues. (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

The code uses 'InterruptedError', which is not defined in Python 2
Surfaces as: redis._compat: global name 'InterruptedError' is not defined

Proof / Evidence

GitHub issue: #845
Fix PR: https://github.com/redis/redis-py/pull/846
First fixed release: 7.1.0
Reproduced locally: No (not executed)
Last verified: 2026-02-08
Confidence: 0.85
Did this fix it?: Yes (upstream fix exists)
Own content ratio: 0.57

Discussion

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

Jump to Sources Open on GitHub

“@gjcarneiro See #846 and help review this change.”

@sethmlarson · 2017-03-23 · source

Failure Signature (Search String)

redis._compat: global name 'InterruptedError' is not defined

Error Message

Stack trace

error.txt

Error Message
-------------
redis._compat: global name 'InterruptedError' is not defined

Minimal Reproduction

repro.py

# For Python older than 3.5, retry EINTR.
if sys.version_info[0] < 3 or (sys.version_info[0] == 3 and
                               sys.version_info[1] < 5):
    # Adapted from https://bugs.python.org/review/23863/patch/14532/54418
    import socket
    import time
    import errno

    from select import select as _select

    def select(rlist, wlist, xlist, timeout):
        while True:
            try:
                return _select(rlist, wlist, xlist, timeout)
            except InterruptedError:
                continue

What Broke

The application fails to handle interrupted system calls in Python 2, causing unexpected behavior.

Why It Broke

The code uses 'InterruptedError', which is not defined in Python 2

Fix Options (Details)

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

pip install redis==7.1.0

When NOT to use: Do not apply this fix if targeting only Python 3 environments.

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/846

First fixed release: 7.1.0

Last verified: 2026-02-08. Validate in your environment.

When NOT to Use This Fix

Do not apply this fix if targeting only Python 3 environments.

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 redis._compat: global name 'InterruptedError' is not defined (Fix)