Mastering Input, Conversion, and Arithmetic in Python

This lesson explains how to input two numbers, add them, and print the sum in Python. Initially, inputs are treated as strings, causing concatenation instead of addition. The `int()` function converts inputs to integers for correct addition. A type error occurs when printing the sum with a string, fixed by using `str()` to convert the sum. The lesson also covers converting to `float` for decimals and `bool` for logical values, where non-zero numbers and non-empty strings become `True`.