python quit program command

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Title: A Guide to Exiting Python Programs Gracefully with the sys.exit() Command
Introduction:
Exiting a Python program gracefully is an essential skill for any developer. While the exit() function is commonly used, it is important to understand that using it directly may not always be the best practice, especially in more complex programs. In this tutorial, we will explore the sys.exit() command, a more versatile way to terminate Python programs.
Step 1: Import the sys module
The sys module provides access to some variables used or maintained by the Python interpreter, as well as functions that interact with the interpreter. To use sys.exit(), you need to import the sys module at the beginning of your script.
Step 2: Implementing a Basic Example
Let's start with a simple example where we want to exit the program if a certain condition is met.
In this example, the program prompts the user to enter 'quit'. If the user inputs 'quit', the program prints a message and exits using sys.exit(). Otherwise, it continues with the rest of the program.
Step 3: Handling Exit Codes
sys.exit() can also take an optional argument, an exit code. Exit codes are integers that help convey the status of the program to the operating system