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📘 Day 17 of #100DaysOfCode in Python: Exception Handling
Exception handling is a critical concept in programming. It helps manage unexpected events that can disrupt the normal flow of a program. Python offers a robust mechanism to handle these unexpected situations through its exception handling techniques.
1. What is Exception Handling?
In simple terms, exception handling is the process of responding to exceptional circumstances during the execution of a program. Exceptions are runtime errors that can potentially lead to program crashes if not handled.
2. Handling Specific Exceptions:
Python provides a wide array of built-in exceptions, like ValueError
, TypeError
, IndexError
, etc.
Example:
try:
number = int(input("Enter a number: "))
except ValueError:
print("That's not a valid number!")
In this example, if a user enters a non-numeric string, a ValueError
is raised and the code inside the except
block is executed.
3. Creating Custom Exceptions:
Python allows developers to define their own custom exceptions. This can be helpful for specific use cases related to the application or domain logic.