Connecting to SFTP
Package Installation explains the available TAR.GZ files for the supported environments, as well as how to install the appropriate one to your python distribution.
Establishing a Connection indicates the module to import and shows how to configure the necessary connection properties in a connection string. Other available connection properties can be used to configure other aspects of the connector capabilities.
Python Version Support
The CData Python Connector for SFTP can be installed and used in various Python 3.6, 3.7, 3.8, and 3.9 distributions (Mac is restricted to Python 3.8).
SFTP Version Support