# What is Cpython

**cpython** is an entire implementation of the Python programming language, written in the C programming language. CPython consists of multiple files and directories that together make up the CPython interpreter and its supporting libraries.

The C code of CPython is organized into various files, including source code files with the extension ".c" and header files with the extension ".h". These files contain the implementation details of the Python language, such as the interpreter, memory management, and built-in functions.

When you install Python on your computer, you are actually installing the CPython implementation. The installation includes the necessary files and directories that make up the CPython interpreter, along with the standard library and other supporting files.

CPython is not a single file but a complete implementation of Python written in C, consisting of multiple files that work together to interpret and execute Python code.

When you compile the CPython source code, it generates an executable file (commonly named `python` or `python.exe`) that serves as the Python interpreter. This executable is responsible for executing Python code and providing the functionalities of the Python language.

Other implementations of Python exist as well, such as Jython (implemented in Java), IronPython (implemented in C#), and PyPy (a just-in-time compiled implementation). These implementations aim to provide the same language features and syntax as Python but may have different performance characteristics or target specific environments.

CPython is the default and most widely used implementation of the Python programming language

When a new functionality needs to be added to Python, it typically involves making changes to the CPython implementation.