Input validation is a fundamental aspect of securing Python code. By ensuring that inputs conform to expected formats and types, you can prevent many types of security vulnerabilities.

Case Validation: Use `input ... you can raise an exception or handle it accordingly. For more complex validations, regular expressions (regex) can be used in conjunction with Python's re module.

Exception Handling: Learned to implement try-except blocks to handle potential I/O errors, improving the reliability and user experience of data-driven applications. Data Structure Usage: Developed ...

Square root of a number. Have the user enter in a number. Use a try-except to see if the input is a valid number. Determine the square root and use a try-except to catch exceptions if the number can ...