How do you retrieve an error message from an exception?

In Python, we will use a simple piece of code that could cause an exception. For instance, we will try to perform integer division with the divisor being zero, which will cause a ZeroDivisionError. Here's a basic example: ```python numerator = 10 denominator = 0 result = numerator / denominator ``` This code will raise a ZeroDivisionError since division by zero is undefined.

In Python, we use the "try-except" statement to handle exceptions or errors. We place the code that may cause an exception within the "try" block and specify what should happen if an exception arises within the "except" block. Here's how the previous code snippet can be modified to handle the exception: ```python numerator = 10 denominator = 0 try: result = numerator / denominator except ZeroDivisionError: print("An exception occurred due to division by zero.") ```

To obtain the error message from an exception in Python, we need to modify the "except" block by adding a variable that acts as an alias for the exception instance. This variable allows us to access the attributes specific to the exception type, including the error message. Here's the modified code: ```python numerator = 10 denominator = 0 try: result = numerator / denominator except ZeroDivisionError as e: error_message = str(e) print(f"An exception occurred: {error_message}") ``` In this example, the "except" block now includes a variable named "e", which is an alias for the ZeroDivisionError exception instance. By converting it to a string using the `str()` function, we can retrieve the error message associated with the exception, which is then printed out.