Where can I find good reference document on python exceptions?

Finding reliable documentation on Python exceptions is crucial for effective error handling. The following resources provide comprehensive information on Python exceptions.

Official Python Documentation

The Python official documentation is the most authoritative source for exception reference ?

Python 3.x (Latest): https://docs.python.org/3/library/exceptions.html

Python 2.x (Legacy): https://docs.python.org/2/library/exceptions.html

Note: Python 2 reached end-of-life in January 2020. It's recommended to use Python 3 documentation for current projects.

What You'll Find in the Documentation

The official documentation covers ?

• Built-in exceptions ? Complete list of all standard exception classes
• Exception hierarchy ? How exceptions are organized and inherited
• Exception handling ? Best practices for try-except blocks
• Custom exceptions ? Creating your own exception classes

Example

Here's a basic example of using built-in exceptions ?

try:
    result = 10 / 0
except ZeroDivisionError as e:
    print(f"Error occurred: {e}")
    print("Cannot divide by zero")
except Exception as e:
    print(f"Unexpected error: {e}")

The output of the above code is ?

Error occurred: division by zero
Cannot divide by zero

Additional Resources

Beyond the official documentation, you can also refer to ?

• PEP 3134 ? Exception chaining and embedded tracebacks
• Python tutorials on exception handling
• Stack Overflow for specific exception-related questions

Conclusion

The Python official documentation remains the best reference for understanding exceptions, their hierarchy, and proper usage. Always refer to the Python 3 documentation for current development projects.