stripe-python `HTTPXClient` `allow_sync

The Fix

pip install stripe==14.4.0a2

Based on closed stripe/stripe-python issue #1298 · 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%.

Open PR/Commit

@@ -298,7 +298,7 @@ my_http_client = stripe.HTTPXClient()
 # If you want to use httpx to make sync requests, you can disable this
 # behavior.
-my_http_client = stripe.HTTPXClient(allow_sync_requests=True)
+my_http_client = stripe.HTTPXClient(allow_sync_methods=True)

fix.md

Option A — Upgrade to fixed release\npip install stripe==14.4.0a2\nWhen NOT to use: This fix is not applicable if the README does not need to be updated.\n\n

Why This Fix Works in Production

Trigger: Users may experience confusion due to incorrect documentation leading to improper usage.
Mechanism: The README incorrectly referenced 'allow_sync_requests' instead of 'allow_sync_methods'
Why the fix works: Fixed the README.md to correctly reference 'allow_sync_methods' instead of 'allow_sync_requests'. (first fixed release: 14.4.0a2).

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 README incorrectly referenced 'allow_sync_requests' instead of 'allow_sync_methods'
Production symptom (often without a traceback): Users may experience confusion due to incorrect documentation leading to improper usage.

Proof / Evidence

GitHub issue: #1298
Fix PR: https://github.com/stripe/stripe-python/pull/1299
First fixed release: 14.4.0a2
Reproduced locally: No (not executed)
Last verified: 2026-02-08
Confidence: 0.85
Did this fix it?: Yes (upstream fix exists)
Own content ratio: 0.73

Discussion

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

Jump to Sources Open on GitHub

“Thanks for the report! Will have the README.md fixed right away.”

@richardm-stripe · 2024-04-05 · source

Failure Signature (Search String)

Users may experience confusion due to incorrect documentation leading to improper usage.

Copy-friendly signature

signature.txt

Failure Signature
-----------------
Users may experience confusion due to incorrect documentation leading to improper usage.

Error Message

Signature-only (no traceback captured)

error.txt

Error Message
-------------
Users may experience confusion due to incorrect documentation leading to improper usage.

What Broke

Users may experience confusion due to incorrect documentation leading to improper usage.

Why It Broke

The README incorrectly referenced 'allow_sync_requests' instead of 'allow_sync_methods'

Fix Options (Details)

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

pip install stripe==14.4.0a2

When NOT to use: This fix is not applicable if the README does not need to be updated.

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

Fix reference: https://github.com/stripe/stripe-python/pull/1299

First fixed release: 14.4.0a2

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

When NOT to Use This Fix

This fix is not applicable if the README does not need to be updated.

Did This Fix Work in Your Case?

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

Prevention

Capture the exact failing error string in logs and tests so you can reproduce via a minimal script.
Pin production dependencies and upgrade only with a reproducible test that hits the failing path.

Version Compatibility Table

Version	Status
14.4.0a2	Fixed

Related Issues

No related fixes found.

Cluster: stripe-python:configuration-error stripe-python hub stripe-python best practices All hubs All clusters

Related clusters: Data consistency Other Payments

Sources

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

stripe-python `HTTPXClient` `allow_sync_requests` != `allow_sync_methods` (Fix)