SSL Certificate Error Issue before and after Python 3.11.13 with Databricks Instance

从提供的 pyproject.toml 设置和 main.py 入口点开始，然后针对一个在所列 Python 版本中需要 SSL 证书的 Databricks 环境运行 uv 命令。使用 results.log 和报告的 SSLVerificationError 比较行为；在受影响的版本中，示例查询返回其表的行数即表示完成。

Overview

When I try to use different versions of python to connect to a databricks environment, I get an SSL certificate issue. It appears to be resolved in 3.11.13 but is broken in versions below (e.g. 3.11.11) and above (3.12, 3.13). Please note that you will need to test with an environment that require an ssl certificate.

Recreation Steps

1. Setup environment as below
2. Run script

uv run main.py --python 3.11.11

Expected - The script will output a row count for the specific table
Actual - An SSLVerificationError will happen

Hardware Info

• macOS - 15.5
• chip - Apple M4 Pro

Affected Python Version

• 3.11.11, <3.11.13
• > 3.11.13

Setup

setup uv project

uv init dbks_testing --python

sample uv project template

[project]
name = "dbks-testing"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.11"
dependencies = [
    "databricks-sqlalchemy>=2.0.6",
]

script to verify issue

you will need to change the table variable to a valid table for your schema

def main():

    access_token = os.getenv("DATABRICKS_TOKEN")
    server_hostname = os.getenv("DATABRICKS_SERVER_HOSTNAME")
    http_path = os.getenv("DATABRICKS_HTTP_PATH")
    catalog = os.getenv("DATABRICKS_CATALOG")
    schema = os.getenv("DATABRICKS_SCHEMA")

    engine = create_engine(
        url=f"databricks://token:{access_token}@{server_hostname}?" +
            f"http_path={http_path}&catalog={catalog}&schema={schema}"
    )

    session = Session(engine)

    account = Table(table, MetaData(schema=schema), autoload_with=engine)

    print(f"Table count for {account.name} is {session.query(account).count()}")


if __name__ == "__main__":

    # add logging
    logging.getLogger("databricks.sql").setLevel(logging.DEBUG)
    logging.basicConfig(filename="results.log",
                        level=logging.DEBUG,
                        format="%(asctime)s - %(name)s - %(levelname)s - %(message)s")

    # set variables need for main
    table = "account"

    main()

Run command in project

uv run main.py --python 3.11.11