python script exit code

Title: Understanding Python Script Exit Codes: A Comprehensive Tutorial
Introduction:
Exit codes are numeric values returned by a program to the operating system upon completion. They provide valuable information about the program's execution status. In this tutorial, we will explore Python script exit codes, how to set them, and how to interpret them. Understanding exit codes can be crucial for automation, error handling, and scripting.
Setting Exit Codes in Python:
In Python, you can set the exit code using the sys module. Here's a basic example:
In this example:
Interpreting Exit Codes:
Exit codes are typically used to determine the outcome of a script in a shell or batch script. Commonly, a script with a non-zero exit code is considered to have failed. The following are standard conventions:
Example Shell Script Using Python Exit Code:
In this shell script, $? represents the exit code of the last executed command. The script checks if the exit code is 0 (success) and prints a corresponding message.
Conclusion:
Exit codes are a powerful tool for conveying the status of your Python scripts to other programs or scripts. By following conventions and setting meaningful exit codes, you enhance the interoperability and error-handling capabilities of your scripts. Utilize exit codes to streamline automation and improve the overall robustness of your Python applications.
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