How to Retrieve Error Codes from Exceptions in Python?

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To retrieve error codes from exceptions in Python, you can use the args attribute of the exception object. Here’s an example of how you can retrieve error codes:

try:
    # Code that may raise an exception
    # ...
except Exception as e:
    error_code = e.args[0] if e.args else None
    print("Error code:", error_code)

In this example, we use a try-except block to catch any exceptions that may occur within the try block. The Exception class is a base class for all exceptions in Python, but you can replace it with a more specific exception class if needed.

Inside the except block, we access the exception object using the variable e. The args attribute of the exception object contains a tuple of arguments passed to the exception.

By retrieving e.args[0], we can access the first argument in the tuple, which is commonly used to store the error code. However, not all exceptions have an error code, so we need to handle cases where the args tuple is empty. In such cases, we assign None to the error_code variable.

You can then use the error_code variable to perform further processing or error handling specific to the error code.

It’s important to note that not all exceptions in Python include an error code by default. The availability of an error code depends on the specific exception class and how it is raised or defined. If you are working with a specific library or module, refer to its documentation to determine if error codes are provided and how to access them.

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