# Summary [Introduction](index.md) --- - [Python Modules](module.md) - [Python Functions](function.md) - [Python Classes](class.md) - [Class customizations](class/protocols.md) - [Type Conversions](conversions.md) - [Mapping of Rust types to Python types](conversions/tables.md)] - [Conversion traits](conversions/traits.md)] - [Python Exceptions](exception.md) - [Calling Python from Rust](python_from_rust.md) - [GIL, mutability and object types](types.md) - [Parallelism](parallelism.md) - [Async / Await](async-await.md) - [Debugging](debugging.md) - [Features Reference](features.md) - [Advanced Topics](advanced.md) - [Building and Distribution](building_and_distribution.md) - [PyPy support](building_and_distribution/pypy.md) - [Useful Crates](ecosystem.md) - [Logging](ecosystem/logging.md) - [FAQ & Troubleshooting](faq.md) --- [Appendix A: Migration Guide](migration.md) [Appendix B: PyO3 and rust-cpython](rust_cpython.md) [Appendix C: Trait bounds](trait_bounds.md) [CHANGELOG](changelog.md)