pypy:tldr:2cdc6

The command "pypy" refers to an alternative implementation of the Python programming language interpreter. It stands for "Python for Python", emphasizing that it is written in Python itself.

Traditionally, Python code is executed using the CPython interpreter, which is written in C. However, pypy aims to provide a faster and more efficient Python runtime by using a Just-in-Time (JIT) compiler. The JIT compiler dynamically translates Python bytecode into machine code at runtime, which can result in significantly improved performance for certain types of programs.

To use the pypy command, you would typically install pypy on your system and then execute it with the desired Python script as an argument. For example, to run a Python script called "script.py" using pypy, you would enter the following command in the terminal:

pypy script.py

By running Python scripts with pypy, you may experience faster execution times for certain workloads compared to using the standard CPython interpreter. However, it's worth noting that pypy is not a drop-in replacement for CPython and may not be fully compatible with all Python programs and libraries. It's recommended to thoroughly test your code with pypy before relying on it for production use.