Python REPL
The Python REPL (Read-Eval-Print Loop) is an interactive command-line environment that allows developers to execute Python code line by line in real-time. It provides immediate feedback by reading user input, evaluating it as Python code, printing the result, and looping back for more input. This tool is built into the Python interpreter and is commonly accessed by running the 'python' or 'python3' command in a terminal without any arguments.
Developers should use the Python REPL for rapid prototyping, debugging, and learning Python syntax, as it enables quick testing of code snippets without creating full scripts. It is particularly useful for exploring libraries, experimenting with data structures, and verifying logic in an interactive manner, making it essential for beginners and experienced programmers alike during development and troubleshooting.