Tracking: Python `3.14` support

[dangotbanned]

Python 3.14 just released today, probably a good time to start tracking upstream support

Upstream

Note

Including some free-threading PRs, as most of upstream hasn't got a 3.14 issue/PR opened yet

• CuDF | Search
• Dask | Search
  • TST: Fix test_enforce_columns on Python 3.14 dask/dask#12047
  • Expr is not fully picklable in Python 3.14 dask/dask#12043
• DuckDB | Search
  • Python 3.14 / 3.14t builds duckdb/duckdb-python#50
  • Add Python 3.14 support duckdb/duckdb-python#116
  • Free threading 314t - Initial / Experimental Builds duckdb/duckdb-python#76
• Ibis | Search
  • chore(deps): update dependency python to v3.14.0 ibis-project/ibis#11669
• Modin | Search
• Pandas
  • https://github.com/pandas-dev/pandas/releases/tag/v2.3.3
• Polars | Search
  • chore(python): Test free-threaded in ci pola-rs/polars#21914
• PyArrow | Search
  • [Python][Packaging] Support Python 3.14 and upload wheels apache/arrow#47438
  • GH-47438: [Python][Packaging] Set up wheel building for Python 3.14 apache/arrow#47616
  • WIP: Dummy PR to check maint-22.0.0 status apache/arrow#47750
• PySpark | Search
  • [SPARK-51169][PYTHON] Add Python 3.14 support in Spark Classic apache/spark#52556
  • apache/spark@05a1ffb
• SQLFrame | Search

Internal

(TODO)