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. Advanced topics
18. 12. Building and distribution
19. 1. 12.1. Supporting multiple Python versions
20. 13. Useful crates
21. 1. 13.1. Logging
    2. 13.2. Using async and await
22. 14. FAQ and troubleshooting
25. Appendix A: Migration guide
26. Appendix B: Trait bounds
27. Appendix C: Python typing hints
28. CHANGELOG
31. Contributing