C Foreign Function Interface for Python. Interact with almost any C code from Python, based on C-like declarations that you can often copy-paste from header files or documentation. What actually happened?

Foreign Function Interface for Python calling C code. Please see the Documentation. Download the file for your platform. If you're not sure which to choose, learn more about installing …

Foreign Function Interface for Python calling C code. Please see the Documentation or uncompiled in the doc/ subdirectory. Download page. Source code is publicly available on GitHub. Mailing list. After git clone or wget && tar, we will get a …

CFFI/C2FFI is an ASDF-integrated mechanism to automatically generate a complete CFFI binding from C header files. Its input is one .h file (with possible #includes of course), and its final output is a lisp file with the relevant CFFI binding forms.

This page documents the runtime interface of the two types “FFI” and “CompiledFFI”. These two types are very similar to each other. You get a CompiledFFI object if you import an out-of-line module. You get a FFI object from explicitly writing cffi.FFI().

CFFI可以用于四种模式之一: "ABI" 与 "API" 级别， 这两种分别都有在线 "in-line" 编译模式或离线 "out-of-line" 编译模式。 ABI 模式 以二进制级别访问库，而较快的 API 模式 使用C编译器访问它们。 我们解释了这个区别， 更多细节如下。 在 in-line 模式 下，每次导入Python代码时都会设置所有内容。 在 out-of-line 模式 下，你有一个单独的准备步骤 (可能还有C编译)，它产生一个模 …

ffi.new(ctype, [initializer]): this function builds and returns a new cdata object of the given ctype. The ctype is usually some constant string describing the C type. It must be a pointer or array type. If it is a pointer, e.g. "int *" or struct foo *, then it allocates the memory for one int or struct foo.

2025年1月19日 · The cffi library (C Foreign Function Interface for Python) is a powerful tool that allows Python developers to interface with C code. Whether you need to call C libraries, interact with hardware, or write performance-critical modules, cffi makes interacting with native code seamless and Pythonic.

CFFI provides a simple to use mechanism for interfacing with C from both CPython and PyPy. It supports two modes: an inline ABI compatibility mode (example provided below), which allows you to dynamically load and run functions from executable modules (essentially exposing the same functionality as LoadLibrary or dlopen ), and an API mode ...

It offers operators for allocating and dereferencing foreign memory, calling foreign functions, and loading shared libraries. The CFFI frontend provides a declarative interface for defining foreign functions, structures, typedefs, enumerated types, etc.