Amazon CodeCatalyst is no longer open to new customers. Existing customers can continue to use the service as normal. For more information, see [How to migrate from CodeCatalyst](migration.md).

# Python compatibility
<a name="packages-python-compatibility"></a>

 While CodeCatalyst does not support the `/simple/` API, it does support the `Legacy` API operations. CodeCatalyst does not support PyPI's `XML-RPC` or `JSON` API operations. 

For more information, see the following on the Python Packaging Authority's GitHub repository.
+ [Legacy API](https://warehouse.pypa.io/api-reference/legacy.html)
+ [XML-RPC API](https://github.com/pypi/warehouse/blob/main/docs/dev/api-reference/xml-rpc.rst)
+ [JSON API](https://docs.pypi.org/api/json/)