File input and output(I/O) is essential in a number of scenarios, for example:
- Working with measured or scanned data. Measurements are stored in files that need to be read in order to be analyzed.
- Interacting with other programs. Save results to files so that they can be imported into other applications, and vice-versa.
- Storing information for future reference or comparisons.
- Sharing data and results with others, possibly on other platforms using other software.
In this section, we will cover how to handle file I/O in Python.
