where is the new sockets library

The web site says that the Python sockets library has been extended. Where do I download that extension? My sockets library does not have any reference to XBee.

What web site are you referring to?

The following web site
describes “new” extensions to the python socket library to accomodate Zigbee devices.

Where do I download these extensions? My existing python socket library does not recognize the new constants (e.g. AF_XBEE) in the revised socket library so clearly I do not have the correct extensions installed.

I did download the XBEE-2.2.3 module and installed it but there are no modified socket classes in that package.

By the way, I am obligated to do this project in Python3.