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PEP 762 – REPL-acing the default REPL
One of Python’s core strengths is its interactive mode, also known as the Read-Eval-Print Loop (REPL), or the Python console, or the Python shell. This PEP describes the new implementation of this functionality written in Python. The new REPL released i...
The new REPL released in Python 3.13 aims to provide modern features expected by today’s users, such as multi-line editing, syntax highlighting, custom commands, and an overall improved interactive experience. The previous REPL written in C leveraged the “readline” or “editline” libraries as a backend to allow certain features such as navigation, history preservation and recall, autocompletion, and configurable keyboard behavior. The PyREPL implementation is designed to maintain full backward compatibility with existing Python code as the old basic REPL will be preserved as a fallback and is available on demand, in case custom workflows require it.
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