Type Conversion (Casting)

INTERACTIVE CHEAT SHEET

The Concept

Type conversion or "casting" is the process of changing a value from one data type to another. In Python, this can be done implicitly by the interpreter (like adding an `int` and a `float`) or explicitly by the programmer using built-in functions like `int()`, `float()`, `str()`, and `bool()`. This is essential when a specific data type is required for an operation, such as concatenating text with a number.

Key Points

Casting changes a variable from one data type to another.
Explicit casting uses functions: `int()`, `float()`, `str()`, `bool()`.
`int(3.9)` truncates the decimal and results in `3`.
`float(5)` adds a decimal making it `5.0`.
`str(25)` turns the number into the text `"25"`.

Core Concept Mastery • Python Visual Series Module