APSW stands for Another Python SQLite Wrapper.
APSW is a Python wrapper for the SQLite embedded relational database engine. It focuses translating between the complete SQLite C API and Python's C API. It is recommended to use the builtin sqlite3 module, unless you want SQLite specific functionality. The documentation has a section on the differences between APSW and sqlite3. APSW supports CPython 3.6 onwards: