Python File I/O

📑 Navigation

• Why File I/O?
• Opening Files: Two Methods
• File Paths
• File Modes
• Reading TXT Files
• Writing TXT Files
• CSV Files
• Reading CSV Files
• Writing CSV Files
• Best Practices
• Key Takeaways

Why File I/O?

The Problem

Without file I/O, every time you log in or restart your program, you need to start from the very beginning. All your data is lost!

Think about it:

• All the programming principles you've learned
• All the exercises you've created
• All the data you've processed