Error message "The request parameter invalid" is displayed when Python is used to call the API for executing scripts.
Call the script execution API by following the instructions in "Executing a Script" in DataArts Studio API Reference in DataArts Studio Usage Guide.

View logs.
Error: Content type 'application/octet-stream' not supported
The value of the content-type parameter is application/json.
content-type indicates the request body type or format. Its default value is application/json.
If the request body contains Chinese characters, use charset=utf8 to specify the Chinese character set.
Change the value of content-type.

After the value of content-type is changed, the API can be called successfully.