xbmc.python 2.1.0 is not a standalone software you download; it is a built-in application programming interface (API) version used by older versions of
Because Python 3 is not backward-compatible with Python 2, addons requiring xbmc.python 2.1.0 on Kodi 19, 20, or 21. How to Fix the "Dependency Not Satisfied" Error Xbmc.python 2.1.0 Download BETTER
If the addon is abandoned and you must use it, you would need to install an older, unsupported version of Kodi. Official Kodi Repository or the developer's GitHub page
Search for the addon name followed by "Kodi 21" or "Kodi 20" to find updated installation guides. 2. Downgrade Your Kodi Version (Not Recommended) " or "Omega" compatible version.
If you want to use an addon that requires this specific version, you have two primary options: 1. Find a Modern Version of the Addon (Recommended) Most popular addons have been updated for Python 3. Official Kodi Repository
or the developer's GitHub page for a "Matrix," "Nexus," or "Omega" compatible version.