Pybind11
Pybind11 is a lightweight header-only C++ library that exposes C++ types and functions to Python, and vice versa, enabling seamless interoperability between the two languages. It allows developers to create Python bindings for C++ code with minimal boilerplate, leveraging modern C++ features like type inference and compile-time introspection. This makes it ideal for wrapping high-performance C++ libraries to be used in Python applications.
Developers should learn Pybind11 when they need to integrate C++ code into Python projects for performance-critical tasks, such as numerical computing, machine learning, or game development, where Python's ease of use can be combined with C++'s speed. It is particularly useful in scientific computing, data analysis, and embedded systems, as it simplifies the creation of Python modules from existing C++ libraries without the complexity of tools like SWIG or Boost.Python.