Before using the CSD Python API you must activate it so that the system knows where to look for the Python interpreter and all its modules.
Assuming the Python API has been installed in the standard location using the CSDS installer, on Windows the simplest way is to launch an Anaconda prompt from the Start menu. Alternatively you can run this command:
On Linux or MacOS it is
(replace /path/to with the correct path).
If the activation was successful "(base)" will appear at the beginning of the command prompt.