9READING AND WRITING FILES
Variables are a fine way to store data while your program is running, but if you want your data to persist even after your program has finished, you need to save it to a file. You can think of a file’s contents as a single string value, potentially gigabytes in size. In this chapter, you will learn how to use Python to create, read, and save files on the hard drive.
Files and File Paths
A file has two key properties: a filename (usually written as one word) and a path. The path specifies the location of a file on the computer. For example, there is a file on my Windows laptop with the filename project.docx in the path ...
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