Python Error Handling

# Basic try/except
try:
    num = int(input("Enter a number: "))
    result = 100 / num
    print(f"Result: {result}")
except ValueError:
    print("Please enter a valid number! ❌")
except ZeroDivisionError:
    print("Cannot divide by zero! ❌")
# Multiple exceptions
def safe_divide(a, b):
    try:
        return a / b
    except ZeroDivisionError:
        return "Cannot divide by zero"
    except TypeError:
        return "Invalid types"
    finally:
        print("Division attempted")
print(safe_divide(10, 2))
print(safe_divide(10, 0))
# File error handling
try:
    with open("missing.txt", "r") as f:
        print(f.read())
except FileNotFoundError:
    print("File not found! Creating it...")
    with open("missing.txt", "w") as f:
        f.write("New file created")
    print("File created! ✅")
# Custom validation with raise
def set_age(age):
    if age < 0:
        raise ValueError("Age cannot be negative!")
    if age > 150:
        raise ValueError("Age seems unrealistic!")
    return age
try:
    set_age(-5)
except ValueError as e:
    print(f"Error: {e}")