File Handling, Context Managers (with) & Exceptions

Safely open files with the with statement and handle errors using try-except-finally blocks.

File I/O & Exception Handling

# Context Manager automatically closes file handle upon exit
try:
    with open("config.json", "r", encoding="utf-8") as f:
        data = f.read()
        print("Config loaded successfully!")
except FileNotFoundError:
    print("Warning: config.json not found, using default values.")
except Exception as e:
    print(f"Unexpected error: {e}")

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