pythoncpython

pythoncpython is not an official project name; it is commonly used informally to refer to CPython, the reference implementation of the Python programming language. CPython is implemented in the C programming language and is the most widely used Python interpreter. It is maintained by the Python Software Foundation and the core developers, with its source code published under the Python Software Foundation License, a permissive open-source license.

CPython compiles Python source code to bytecode and executes it on a virtual machine written in C. It ships with the standard library and supports a vast ecosystem of third-party packages. The runtime uses a combination of reference counting for memory management and a cyclic garbage collector, and it employs a global interpreter lock to simplify CPython's memory model when multi-threading.

CPython runs on many platforms, including Windows, macOS, and major Linux distributions, and supports multiple Python versions, primarily the current stable Python 3.x series. The interpreter exposes a C API that enables writing extension modules in C or C++, which can be loaded as built-in or dynamically loaded modules.

Distribution and packaging are handled through sources and binaries provided by the Python maintainers, as well as package managers like pip for installing third-party libraries. CPython serves as the de facto standard for ensuring Python language compatibility and guides many language-implementation features.

Other Python implementations exist, such as PyPy, Jython, IronPython, and MicroPython. While they aim to implement Python semantics, CPython remains the reference for language behavior and CPython-specific C extensions.