Create a simple text file "notes.txt" with a few lines. Write a script to read and print its contents. (Concepts: opening files, read(), close())

# Assume notes.txt exists with lines like "Line 1\nLine 2\nLine 3"
file = open("notes.txt", "r")  # r for read
content = file.read()
file.close()
print("File contents:\n", content)

# Assume notes.txt exists with lines like "Line 1\nLine 2\nLine 3"
file = open("notes.txt", "r")  # r for read
content = file.read()
file.close()
print("File contents:\n", content)

Explanation Notes (Like Me Explaining to Students): Students, Day 20: Interact with files—persistent data! open("notes.txt", "r")—opens for reading ("r" mode). file.read() loads all as string into content. file.close() frees resources (important!). Print it.

Run: If file has "Hello\nWorld", prints with newlines. Create the file first (use a text editor). In time, try readline() for one line or "w" mode to write. Files store beyond runtime—key for apps. Handles real data!

Key Concepts:

• Opening Files (open()): Function to access files; modes like "r" (read), "w" (write).
• .read(): File method that returns the entire contents as a string.
• .close(): Closes the file handle to free system resources.