Cython 是一门基于 Python 的编程语言， 通过额外的语法允许可选择的静态类型声明。 它的目标是成为 Python 的超集， 而Python 赋予它高级，面向对象，函数式以及动态编程等特性。 使用 Cython 编写的源代码会被转换成优化过的 C/C++ 代码， 并且被编译成 Python 的扩展模块。 这样即有非常快的程序执行速度和与外部C程序库的紧密集成， 也可以保持 Python 语言所著称的高程序员生产力。

Cython让你能够联合Python 与 C 实现：

• write Python code that calls back and forth from and to C or C++ code natively at any point.
• easily tune readable Python code into plain C performance by adding static type declarations.
• use combined source code level debugging to find bugs in your Python, Cython and C code.
• interact efficiently with large data sets, e.g. using multi-dimensional NumPy arrays.
• quickly build your applications within the large, mature and widely used CPython ecosystem.
• integrate natively with existing code and data from legacy, low-level or high-performance libraries and applications.

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