Python Data Handling and String Formatting

📋 Course Outline

1. Dictionary Comparison
2. String Formatting Output
3. File Handling in Python
4. Python Data Types
5. Python Operators
6. Python Functions
7. Control Structures
8. Python Data Structures
9. Python String Operations
10. Python Modules and Variables

📖 1. Dictionary Comparison

🔑 Key Concepts & Definitions

• cmp (function to compare dictionaries): A built-in function in Python (up to Python 2) that compares two dictionaries and returns an integer indicating their relative order or equality. It helps determine whether dictionaries are equal or which one is greater based on their contents. (Note: In Python 3, cmp() is removed, and comparison is done via operators.)

• keys() (dictionary method to get all keys): A method that returns a view object containing all the keys in a dictionary. It allows iteration over keys and is useful for checking key existence or retrieving all keys for processing. Example: dict.keys().

• dict() (dictionary creation from sequence of tuples): A constructor that creates a dictionary from a sequence (like a list) of key-value pairs represented as tuples. It converts the sequence into a dictionary with keys mapped to their respective values. Example: dict([('a', 1), ('b', 2)]).