1. Introduction
4. 1. Getting started
5. 2. Using Rust from Python
6. 1. 2.1. Python modules
   2. 2.2. Python functions
   3. 1. 2.2.1. Function signatures
      2. 2.2.2. Error handling
   4. 2.3. Python classes
   5. 1. 2.3.1. Class customizations
      2. 1. 2.3.1.1. Basic object customization
         2. 2.3.1.2. Emulating numeric types
         3. 2.3.1.3. Emulating callable objects
      3. 2.3.2. Thread safety
7. 3. Calling Python from Rust
8. 1. 3.1. Python object types
   2. 3.2. Python exceptions
   3. 3.3. Calling Python functions
   4. 3.4. Executing existing Python code
9. 4. Type conversions
10. 1. 4.1. Mapping of Rust types to Python types
    2. 4.2. Conversion traits
11. 5. Using async and await
12. 6. Parallelism
13. 7. Supporting Free-Threaded Python
14. 8. Debugging
15. 9. Features reference
16. 10. Performance
17. 11. Type stub generation and introspection
18. 12. Advanced topics
19. 13. Building and distribution
20. 1. 13.1. Supporting multiple Python versions
21. 14. Useful crates
22. 1. 14.1. Logging
    2. 14.2. Tracing
    3. 14.3. Using async and await
23. 15. FAQ and troubleshooting
26. Appendix A: Migration guide
27. Appendix B: Trait bounds
28. Appendix C: Python typing hints
29. CHANGELOG
32. Contributing