[jepler]

"The LLDB debugger APIs are exposed as a C++ object oriented interface in a shared library. The lldb command line tool links to, and uses this public API… The entire API is also then exposed through Python script bindings which allow the API to be used within the LLDB embedded script interpreter, and also in any python script that loads the lldb.py module in standard python script files. See the Python Reference page for more details on how and where Python can be used with the LLDB API."

[AstralStorm]

And therefore three is no stable ABI because C++ lacks one. Maybe in the future...