Section 4.1. Introduction
Section 4.2. Reading from a File
Section 4.3. Writing to a File
Section 4.4. Searching and Replacing Text in a File
Section 4.5. Reading a Particular Line from a File
Section 4.6. Retrieving a Line at Random from a File of Unknown Size
Section 4.7. Counting Lines in a File
Section 4.8. Processing Every Word in a File
Section 4.9. Reading a Text File by Paragraphs
Section 4.10. Reading Lines with Continuation Characters
Section 4.11. Reading Data from ZIP Files
Section 4.12. Reading INI Configuration Files
Section 4.13. Sending Binary Data to Standard Output Under Windows
Section 4.14. Using Random-Access Input/Output
Section 4.15. Updating a Random-Access File
Section 4.16. Splitting a Path into All of Its Parts
Section 4.17. Treating Pathnames as Objects
Section 4.18. Creating Directories Including Necessary Parent Directories
Section 4.19. Walking Directory Trees
Section 4.20. Swapping One File Extension for Another Throughout a Directory Tree
Section 4.21. Finding a File Given an Arbitrary Search Path
Section 4.22. Finding a File on the Python Search Path
Section 4.23. Dynamically Changing the Python Search Path
Section 4.24. Computing Directory Sizes in a Cross-Platform Way
Section 4.25. File Locking Using a Cross-Platform API
Section 4.26. Versioning Filenames
Section 4.27. Module: Versioned Backups
