Short answer: you are running Python older than 3.12. Either upgrade the interpreter to 3.12+, or import override from typing_extensions instead of typing. ``` ImportError: cannot import name 'override' from 'typing' ``` 1. Confirm the interpreter: `python --version`. Anything below 3.12 explains the error completely; no package install adds names to the stdlib typing module. Expected: you know which side of 3.12 you are on. 2. Fix for your own code on older Python: install the backport with `python -m pip install typing_extensions` (4.5.0 or newer carries override) and change the import to `from typing_extensions import override`. A version-portable pattern is a try block that imports from typing first and falls back to typing_extensions. Expected: the module imports and the decorator works identically; type checkers accept either source. 3. Fix when the failing import is inside a library you installed: upgrade that library, or upgrade typing_extensions, since several packages (the OpenAI Python SDK among them) import override from typing_extensions and fail the same way when an old typing_extensions shadows the new one. Check with `python -m pip show typing_extensions` and upgrade it, then restart the process or notebook kernel. 4. Fix by upgrading Python: move the environment to 3.12+ and keep the typing import as written. In a virtualenv that means recreating the env with the new interpreter and reinstalling dependencies, not just installing a second Python alongside. Root cause: override was standardized by PEP 698 and added to typing in 3.12. On earlier versions the name simply is not there, so the import fails at module load regardless of what else is installed, unless the code uses the typing_extensions backport. When to use: ImportError for override on Python 3.8 to 3.11, in your code or in a freshly installed library. When NOT to use: on Python 3.12+ this exact import works; if it still fails there, you are not running the interpreter you think you are (check sys.executable) or a local file named typing.py is shadowing the stdlib module. Variant phrasings: "importerror cannot import name override from typing python 3.11", "typing override import error", "cannot import name override from typing_extensions". Edge cases: in Databricks and hosted notebooks the preinstalled typing_extensions is often old; upgrade it in the cluster or notebook and restart before concluding the fix failed. The decorator is a no-op at runtime; all enforcement comes from type checkers such as mypy and pyright.

Context: typing.override, the decorator from PEP 698 that marks a method as intentionally overriding a base-class method, only exists in the standard library from Python 3.12 onward. Code written on 3.12 or newer (or a library that assumes it) fails with this ImportError on Python 3.11 and earlier. Before 3.12 the same decorator lives in the typing_extensions backport package, which is where code supporting older Pythons is supposed to import it from.