How to Read and Write Files in Python (JSON + Text)

import json
from pathlib import Path


def load_json_file(filepath):
    """Load data from a JSON file and return as dict/list."""
    path = Path(filepath)
    with path.open("r", encoding="utf-8") as f:
        return json.load(f)


def save_json_file(filepath, data):
    """Save data to a JSON file."""
    path = Path(filepath)
    with path.open("w", encoding="utf-8") as f:
        json.dump(data, f, indent=2)


def read_text_file(filepath):
    """Read a text file and return content as string."""
    path = Path(filepath)
    return path.read_text(encoding="utf-8")


def write_text_file(filepath, content):
    """Write content to a text file."""
    path = Path(filepath)
    path.write_text(content, encoding="utf-8")


if __name__ == "__main__":
    # Demonstrate with JSON data
    sample_data = {
        "name": "Alice",
        "age": 30,
        "skills": ["Python", "SQL"]
    }

    # Save to file
    file_path = "sample_data.json"
    save_json_file(file_path, sample_data)

    # Load it back
    loaded_data = load_json_file(file_path)
    print("Loaded JSON:", loaded_data)
    print("Name:", loaded_data["name"])

    # Demonstrate with text
    text_file = "notes.txt"
    write_text_file(text_file, "Hello, Python!")
    print("Text file contents:", read_text_file(text_file))

    # Clean up temp files
    Path(file_path).unlink()
    Path(text_file).unlink()