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fix: retry transient HTTP errors (502/503/504/429) during session polling #55

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Merged
peterfoldes merged 2 commits into from
Feb 21, 2026
Merged

fix: retry transient HTTP errors (502/503/504/429) during session polling #55

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4ae9505
fix: retry transient HTTP errors (502/503/504/429) during session pol…
peterfoldes Feb 21, 2026
3044d56
chore: bump version to 0.23.2
peterfoldes Feb 21, 2026
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2 changes: 1 addition & 1 deletion pyproject.toml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
[project]
name = "wherobots-python-dbapi"
version = "0.23.1"
version = "0.23.2"
description = "Python DB-API driver for Wherobots DB"
authors = [{ name = "Maxime Petazzoni", email = "max@wherobots.com" }]
requires-python = ">=3.10, <4"
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15 changes: 13 additions & 2 deletions wherobots/db/driver.py
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,10 @@
threadsafety = 1
paramstyle: Final[str] = PARAM_STYLE

# HTTP status codes that indicate transient server-side issues and should be retried.
# This follows the industry-standard set used by urllib3.util.Retry's status_forcelist.
TRANSIENT_HTTP_STATUS_CODES = {429, 502, 503, 504}


def gen_user_agent_header():
try:
Expand Down Expand Up @@ -135,9 +139,16 @@ def connect(
@tenacity.retry(
stop=tenacity.stop_after_delay(wait_timeout),
wait=tenacity.wait_exponential(multiplier=1, min=1, max=5),
retry=tenacity.retry_if_not_exception_type(
(requests.HTTPError, OperationalError)
retry=(
tenacity.retry_if_exception(
lambda e: (
isinstance(e, requests.HTTPError)
and e.response.status_code in TRANSIENT_HTTP_STATUS_CODES
)
)
| tenacity.retry_if_exception_type(tenacity.TryAgain)
),
reraise=True,
)
def get_session_uri() -> str:
r = requests.get(session_id_url, headers=headers)
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