What is Python FFI and how can I use it?

What is Python FFI and how can I use it?

Python FFI, or Foreign Function Interface, allows Python code to call functions written in C or C++. It enables integration with libraries written in these languages.

Can you give me an example of how to use FFI in Python?

Sure! You can use the ctypes library in Python to load shared libraries and call their functions. For example:

import ctypes

# Load the shared library
my_lib = ctypes.CDLL('my_library.so')

# Call a function from the library
result = my_lib.my_function(arg1, arg2)

What are the benefits of using FFI?

Using FFI allows you to leverage existing C/C++ libraries for performance-critical tasks, access system-level resources, and reuse code.

Are there any limitations I should be aware of?

Yes, some limitations include data type compatibility issues, potential memory management challenges, and the need for careful error handling.