feat: add Python 3.14 support by aaronsteers · Pull Request #1338 · airbytehq/PyAirbyte

Aaron ("AJ") Steers (aaronsteers) · 2026-10-06T19:44:04Z

Overview

👉 TL;DR: Lets PyAirbyte install and run on Python 3.14. Raises `requires-python` to `<3.15`, bumps the `airbyte-cdk` floor to `7.34.0` (the first CDK release with 3.14 support), widens the `pyarrow`, `snowflake-connector-python` and `viztracer` caps to versions with `cp314` wheels, and adds `3.14` to the unit matrices.

Depends on (released):

feat: add Python 3.14 support airbyte-python-cdk#1215 (shipped in airbyte-cdk 7.34.0)

Changes

requires-python = ">=3.11,<3.15"
airbyte-cdk >=7.28.3 → >=7.34.0. 7.34.0 is the first release with Requires-Python: <3.15, pandas<3.0 and pydantic^2.13. The temporary git source and its TK-TODO are removed.
pyarrow <22.0 → <24.0. 22 is the first release with 3.14 wheels; locks 23.0.1.
snowflake-connector-python <4.0 → <5.0. 3.x has no 3.14 wheels; locks 4.8.0.
viztracer (dev) <1.1.0 → <1.2.0. 1.1.0 is the first release with 3.14 wheels.
Floors are otherwise unchanged. uv.lock was re-locked from release-candidate/v1 with targeted upgrades: airbyte-cdk 7.34.0, pandas 2.3.3, pydantic 2.14.0, pyarrow 23.0.1, snowflake-connector-python 4.8.0 (plus its cryptography/pyopenssl/cffi), viztracer 1.1.1.
python_pytest.yml and test-pr-command.yml: added '3.14'.

Review Spotlight

Reviewers with limited time, please review first:

pyproject.toml dependency caps, especially the snowflake-connector-python 4.x and pyarrow 23 majors.

Risks

snowflake-connector-python 4.x is a major bump. Unit tests pass; the Snowflake cache integration tests need creds and run in CI only.
pyarrow 22/23 is a major bump.

Follow-ups

Dockerfile.mcp stays on Python 3.12.

Test plan

uv sync --python 3.14 --no-build --all-extras: everything installs from wheels (no source builds).
Local unit suite on Python 3.14.7 with the locked deps: 1654 passed, 1 skipped.
CI unit tests on 3.11 through 3.14 (Ubuntu and Windows), plus integration and No Creds.

Link to Devin session: https://app.devin.ai/sessions/11efb22ec9fc43aaaeb1395cb3343306
Open in Devin Desktop: https://app.devin.ai/desktop/session/11efb22ec9fc43aaaeb1395cb3343306?variant=devin
Requested by: Aaron ("AJ") Steers (@aaronsteers)

Co-Authored-By: AJ Steers <aj@airbyte.io>

…rge) Co-Authored-By: AJ Steers <aj@airbyte.io>

devin-ai-integration · 2026-10-06T19:44:14Z

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

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github-actions · 2026-10-06T19:44:33Z

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Testing This PyAirbyte Version

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# Run PyAirbyte CLI from this branch:
uvx --from 'git+https://github.com/airbytehq/PyAirbyte.git@devin/1791315239-python-3-14-support' pyairbyte --help

# Install PyAirbyte from this branch for development:
pip install 'git+https://github.com/airbytehq/PyAirbyte.git@devin/1791315239-python-3-14-support'

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Copilot

Copilot review overview

🟡 Changes recommended

The documented CDK release dependency and temporary TK-TODO git source remain unresolved merge blockers.

Review effort: Balanced
Findings: None

What changed in this PR

Adds Python 3.14 support by widening compatibility constraints, updating locked dependencies, and expanding CI coverage.

Changes:

Supports Python >=3.11,<3.15.
Updates dependencies with Python 3.14 wheels.
Tests Python 3.14 on Ubuntu and Windows.

File	Description
`pyproject.toml`	Widens Python and dependency constraints; temporarily sources the unreleased CDK branch.
`uv.lock`	Locks Python 3.14-compatible dependency versions and wheels.
`.github/workflows/python_pytest.yml`	Adds Python 3.14 to unit-test CI.
`.github/workflows/test-pr-command.yml`	Adds Python 3.14 to on-demand testing.

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github-code-quality · 2026-10-06T19:52:23Z

Code Coverage Overview

Languages: Python

Python / code-coverage/pytest-no-creds

The overall line coverage in commit da3e8fd in the devin/1791315239-pyt... branch is 78%. The line coverage in commit d9f652f in the release-candidate/v1 branch is 65%.

Show a line coverage summary of the most impacted files.

File	`release-candidate/v1` d9f652f	`devin/1791315239-pyt...` da3e8fd	+/-
`airbyte/_util/api_util.py`	36%	65%	+29%
`airbyte/mcp/cloud.py`	52%	82%	+30%
`airbyte/cloud/connectors.py`	34%	75%	+41%
`airbyte/mcp/int..._registry_ui.py`	0%	92%	+92%
`airbyte/mcp/_user_identity.py`	0%	93%	+93%
`airbyte/_direct...ctors/models.py`	0%	94%	+94%
`airbyte/mcp/_telemetry.py`	0%	94%	+94%
`airbyte/mcp/_sso_auth.py`	0%	96%	+96%
`airbyte/cloud/models.py`	0%	97%	+97%
`airbyte/mcp/int...nc_status_ui.py`	0%	97%	+97%

Python / code-coverage/pytest

The overall line coverage in commit da3e8fd in the devin/1791315239-pyt... branch is 80%. The line coverage in commit d9f652f in the release-candidate/v1 branch is 71%.

Show a line coverage summary of the most impacted files.

File	`release-candidate/v1` d9f652f	`devin/1791315239-pyt...` da3e8fd	+/-
`airbyte/cloud/connectors.py`	51%	80%	+29%
`airbyte/mcp/cloud.py`	52%	82%	+30%
`airbyte/mcp/_otel.py`	0%	79%	+79%
`airbyte/mcp/int..._registry_ui.py`	0%	92%	+92%
`airbyte/mcp/_user_identity.py`	0%	93%	+93%
`airbyte/_direct...ctors/models.py`	0%	94%	+94%
`airbyte/mcp/_telemetry.py`	0%	94%	+94%
`airbyte/mcp/_sso_auth.py`	0%	96%	+96%
`airbyte/cloud/models.py`	0%	97%	+97%
`airbyte/mcp/int...nc_status_ui.py`	0%	97%	+97%

Python / code-coverage/pytest-unit

The overall line coverage in commit da3e8fd in the devin/1791315239-pyt... branch is 74%. Line coverage data for the release-candidate/v1 branch is not yet available.

Show a line coverage summary of the most covered files.

File	`release-candidate/v1`	`devin/1791315239-pyt...` da3e8fd	+/-
`airbyte/cloud/models.py`	—	97%	—
`airbyte/mcp/_sso_auth.py`	—	96%	—
`airbyte/_direct...ctors/models.py`	—	94%	—
`airbyte/cloud/client.py`	—	90%	—
`airbyte/exceptions.py`	—	85%	—
`airbyte/mcp/cloud.py`	—	82%	—
`airbyte/progress.py`	—	80%	—
`airbyte/cloud/connectors.py`	—	75%	—
`airbyte/shared/...ql_processor.py`	—	68%	—
`airbyte/_util/api_util.py`	—	65%	—

_{Updated October 08, 2026 16:14 UTC}

… TK-TODO git source Co-Authored-By: AJ Steers <aj@airbyte.io>

Copilot

🔵 Needs a closer look

The PyArrow and Snowflake major-version expansions require final confirmation from credentialed integration CI.

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🧠 Review effort: Balanced

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devin-ai-integration

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

devin-ai-integration Bot and others added 3 commits October 6, 2026 18:51

feat: add Python 3.13 support

bd00427

Co-Authored-By: AJ Steers <aj@airbyte.io>

ci: re-enable Python 3.12 in unit test matrices

96475ae

Co-Authored-By: AJ Steers <aj@airbyte.io>

feat: add Python 3.14 support (CDK from branch, TK-TODO pin before me…

60202fa

…rge) Co-Authored-By: AJ Steers <aj@airbyte.io>

devin-ai-integration Bot assigned Aaron ("AJ") Steers (aaronsteers) Oct 6, 2026

Airbyte Support Bot (airbyte-support-bot) requested a balanced review from Copilot October 6, 2026 19:49

Copilot started reviewing on behalf of Airbyte Support Bot (airbyte-support-bot) October 6, 2026 19:50

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Base automatically changed from devin/1791312677-python-3-13-support to release-candidate/v1 October 7, 2026 20:06

Aaron ("AJ") Steers (aaronsteers) mentioned this pull request Oct 8, 2026

feat: add Python 3.14 support airbytehq/airbyte-python-cdk#1215

Merged

Merge release-candidate/v1; pin released airbyte-cdk>=7.34.0 and drop…

da3e8fd

… TK-TODO git source Co-Authored-By: AJ Steers <aj@airbyte.io>

Airbyte Support Bot (airbyte-support-bot) requested a balanced review from Copilot October 8, 2026 16:14

Copilot started reviewing on behalf of Airbyte Support Bot (airbyte-support-bot) October 8, 2026 16:15

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Aaron ("AJ") Steers (aaronsteers) marked this pull request as ready for review October 8, 2026 16:38

Aaron ("AJ") Steers (aaronsteers) merged commit 6163155 into release-candidate/v1 Oct 8, 2026
32 of 33 checks passed

Aaron ("AJ") Steers (aaronsteers) deleted the devin/1791315239-python-3-14-support branch October 8, 2026 16:39

devin-ai-integration Bot reviewed Oct 8, 2026

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feat: add Python 3.14 support - #1338

feat: add Python 3.14 support#1338
Aaron ("AJ") Steers (aaronsteers) merged 4 commits into
release-candidate/v1from
devin/1791315239-python-3-14-support

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