Python 3.7 Documentation Table of Content What's new in Python 3.7? 1. Whetting Your Appetite 2. Using the Python Interpreter 3. An Informal Introduction to Python 4. More Control Flow Tools 5. Data Structures 6. Modules 7. Input and Output 8. Errors and Exceptions 9. Classes 10. Brief Tour of the Standard Library 11. Brief Tour of the Standard Library — Part II 12. Virtual Environments and Packages 13. What Now? 14. Interactive Input Editing and History Substitution 15. Floating Point Arithm