7: Files — Read — Invisible Network

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In this chapter, we start to work with Secondary Memory (or files). Secondary memory is not erased when the power is turned off. Or in the case of a USB flash drive, the data we write from our programs can be removed from the system and transported to another system.

7.1: Persistence
7.2: Opening Files
7.3: Text files and Lines
7.4: Reading Files
7.5: Searching through a File
7.6: Letting the user choose the file name
7.7: Using try, except, and open
7.8: Writing Files
7.9: Debugging
7.E: Files (Exercises)
7.G: Files (Glossary)

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