Errors and exceptions are integral parts of programming in Python, helping developers manage and respond to unexpected events. Understanding the differences between errors and exceptions, and knowing how to handle them properly, is crucial for writing reliable code.
Syntax errors occur when the parser detects an incorrect statement. These are detected before the program is executed.
Example:
# SyntaxError: invalid syntax
if True
print("Hello")
Runtime errors occur during the execution of the program. They are also known as exceptions.
Example:
# ZeroDivisionError: division by zero
print(10 / 0)
Exceptions are runtime errors that can be caught and handled to prevent the program from crashing. Python provides a variety of built-in exceptions, and you can also define custom exceptions.
Common Built-in Exceptions: