What is the function of the sys module in Python?

The sys module is one of Python’s standard libraries, which offers functionalities related to the Python interpreter and runtime environment.

The main function of the sys module includes:

1. Access to the interpreter is provided: the sys module offers various variables and functions related to the Python interpreter, such as sys.argv for obtaining command line arguments and sys.exit for exiting the Python interpreter.
2. The sys module provides functions related to the system, such as sys.platform to get the current operating system’s name, and sys.stdin and sys.stdout to control standard input and output streams.
3. The sys module offers information about the runtime environment such as sys.version to retrieve the Python interpreter version and sys.maxsize to get the maximum integer value.
4. The sys module offers functions related to configuring the Python interpreter, such as sys.path for accessing or changing the search path for Python modules, and sys.modules for retrieving loaded modules.

In conclusion, the sys module offers many functions related to the Python interpreter and runtime environment, which can be used to control and manage the execution of Python programs.