Python get exception message

Python get exception message

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In Python, you can retrieve the exception message using various methods depending on your needs and preferences. Here are some examples:

try:
Code that might raise an exception
except Exception as exc:
print(str(exc))  # Or exc.args[0]

This method is straightforward and works for most exceptions, including custom exceptions you might define.

import traceback
try:
Code that might raise an exception
except Exception as exc:
tb = traceback.format_exception(exc.class, exc, None)
print('n'.join(tb))

This approach provides more detailed information about the exception, including the line number and file name where it occurred.

try:
Code that might raise an exception
except Exception as exc:
print(exc.str())  # In Python 3.x
print(exc.message)  # In Python 2.x

This method is specific to the exception type and provides a more concise message.

try:
Code that might raise an exception
except Exception as exc:
if hasattr(exc, 'args'):
print(exc.args[0])

Some exceptions, like ValueError, provide an args attribute that contains a tuple of values. This method can be useful when you want to access specific information from the exception.

In summary:

I hope this helps you better understand how to get the exception message in Python!

Remember: exceptions are not errors, but rather opportunities to handle and learn from unexpected situations.

exception handling in python with example

Exception Handling in Python:

In Python programming, exceptions are a way to handle abnormal situations or errors that occur during the execution of code. Exception handling is an essential part of any program as it helps to ensure that your program continues to run smoothly even when unexpected things happen.

Python provides several ways to handle exceptions:

Example:

Here's an example of exception handling in Python:

try:
x = 5 / 0
except ZeroDivisionError:
print("You can't divide by zero!")

In this example, we're trying to divide x by zero. When this happens, the program will raise a ZeroDivisionError. The except block catches this exception and prints an error message.

Now, let's consider another example with multiple exceptions:

try:
file = open("non_existent_file.txt", "r")
data = file.read()
except FileNotFoundError:
print("The file does not exist.")
except IOError as e:
print(f"IO Error: {e}")
finally:
if 'file' in locals():
file.close()

In this example, we're trying to open a non-existent file and read its content. The program will raise FileNotFoundError when it can't find the file. We also catch IOError which might occur during the file operations. Finally, we close the file if it's successfully opened.

Benefits of Exception Handling:

Common Python Exceptions:

Conclusion:

Exception handling is a crucial part of Python programming. It enables your code to handle unexpected situations and ensure a smooth execution. By using try, except, and finally blocks, you can write robust and reliable code that handles errors effectively.