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fix(core): support for Python 3.14 (#33461)

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* Fix detection of support of context in `asyncio.create_task`
* Fix: in Python 3.14 `asyncio.get_event_loop()` raises an exception if
there's no running loop
* Bump pydantic to version 2.12
* Skips tests with pydantic v1 models as they are not supported with
Python 3.14
* Run core tests with Python 3.14 in CI.

---------

Co-authored-by: Mason Daugherty <mason@langchain.dev>
Co-authored-by: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>
This commit is contained in:
Christophe Bornet
2025-10-17 11:27:34 +02:00
committed by GitHub
parent 1d2273597a
commit 2d5efd7b29
17 changed files with 203 additions and 279 deletions
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.github/scripts/check_diff.py vendored
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@@ -132,7 +132,7 @@ def _get_configs_for_single_dir(job: str, dir_: str) -> List[Dict[str, str]]:
if job == "codspeed":
py_versions = ["3.12"] # 3.13 is not yet supported
elif dir_ == "libs/core":
py_versions = ["3.10", "3.11", "3.12", "3.13"]
py_versions = ["3.10", "3.11", "3.12", "3.13", "3.14"]
# custom logic for specific directories
elif dir_ == "libs/langchain" and job == "extended-tests":