Cython

Cython is a <a href="/facts/Superset/gLcqWjd2">superset</a> of the programming language <a href="/facts/Python_(programming_language)/YbuGqofa">Python</a>, which allows developers to write Python code (with optional, C-inspired syntax extensions) that yields performance comparable to that of <a href="/facts/C_(programming_language)/Ky2No763">C</a>.
Cython is a <a href="/facts/Compiled_language/WRqIRjFx">compiled language</a> that is typically used to generate <a href="/facts/CPython/kMhXKEGC">CPython</a> extension modules. Annotated Python-like code is compiled to C and then automatically <a href="/facts/Wrapper_library/b61otW6r">wrapped in interface code</a>, producing extension modules that can be loaded and used by regular Python code using the import statement, but with significantly less computational overhead at <a href="/facts/Run_time_(program_lifecycle_phase)/lCxKsrzB">run time</a>. Cython also facilitates wrapping independent C or C++ code into python-importable modules.
Cython is written in Python and C and works on <a href="/facts/Microsoft_Windows/bwhAhuSL">Windows</a>, <a href="/facts/MacOS/Y93vVpTm">macOS</a>, and <a href="/facts/Linux/9FvCKSTq">Linux</a>, producing C source files compatible with CPython 2.6, 2.7, and 3.3 and later versions. The Cython source code that Cython compiles (to C) can use both Python 2 and Python 3 syntax, defaulting to Python 2 syntax in Cython 0.x and Python 3 syntax in Cython 3.x. The default can be overridden (e.g. in source code comment) to Python 3 (or 2) syntax. Since Python 3 syntax has changed in recent versions, Cython may not be up to date with the latest additions. Cython has "native support for most of the C++ language" and "compiles almost all existing Python code".
Cython 3.0.0 was released on 17 July 2023.

Cython open-in-new

Cython