Discussion of sys module in Data Model

Documentation

In the section titled "I/O objects (also known as file objects)" in the Data Model chapter, it says:

The objects sys.stdin, sys.stdout and sys.stderr are initialized to file objects corresponding to the interpreter’s standard input, output and error streams; they are all open in text mode and therefore follow the interface defined by the io.TextIOBase abstract class.

However, neither the sys nor the io modules have been introduced (and probably should not be in this chapter). Is it appropriate to talk about module-specific features here? Or maybe this text should be modified to lean towards those objects just as examples of file objects?

Commencez par la section « I/O objects (also known as file objects) » du chapitre Data Model et lisez la discussion environnante afin d’évaluer si les références à sys et io sont introduites de manière appropriée. Le travail est terminé lorsqu’il est déterminé s’il faut conserver ces exemples spécifiques aux modules ou réviser le passage pour les présenter uniquement comme des exemples de file objects.