pybind11 VS Hashmaps

pybind11

• Experience using crow as web server
  11 projects | /r/cpp | 6 Nov 2023

  I'm investigating using C++ to build a REST server, and would love to know of people's experiences with Crow-- or whether they would recommend something else as a "medium-level" abstraction C++ web server. As background, I started off experimenting with Python/FastAPI, which is great, but there is too much friction to translate from pybind11-exported C++ objects to the format that FastAPI expects, and, of course, there are inherent performance limitations using Python, which could impact scaling up if the project were to be successful.

• Swig – Connect C/C++ programs with high-level programming languages
  5 projects | news.ycombinator.com | 18 Jul 2023
• returning numpy arrays via pybind11
  1 project | /r/codehunter | 7 Jul 2023

  I have a C++ function computing a large tensor which I would like to return to Python as a NumPy array via pybind11.

• I created smooth_lines python module, great for drawing software
  3 projects | /r/Python | 27 Apr 2023

  This is based on the Google Ink Stroke Modeler C++ library, and using pybind11 to make it available on python.

• Facial Landmark Detection with C++
  1 project | /r/robotics | 2 Mar 2023

  pybind11 makes it easy to call C++ from Python if you want to mix.

• Python’s Multiprocessing Performance Problem
  1 project | news.ycombinator.com | 1 Mar 2023

  If you've never used Pybind before these pybind tests[1] and this repo[2] have good examples you can crib to get started (in addition to the docs). Once you handle passing/returning/creating the main data types (list, tuple, dict, set, numpy array) the first time, then it's mostly smooth sailing.

  Pybind offers a lot of functionality, but core "good parts" I've found useful are (a) use a numpy array in Python and pass it to a C++ method to work on, (b) pass your python data structure to pybind and then do work on it in C++ (some copy overhead), and (c) Make a class/struct in C++ and expose it to Python (so no copying overhead and you can create nice cache-aware structs, etc.).

  [1] https://github.com/pybind/pybind11/blob/master/tests/test_py...

• Making Python Web Application with C++ Backend
  1 project | /r/PinoyProgrammer | 12 Feb 2023
• Using pybind11 with minGW to cross compile pyhton module for Windows
  2 projects | /r/cpp_questions | 17 Jan 2023

  I have a python module for which the logic is written in C++ and I use pybind11 to expose the objects and functions to Python.

• IPC communication between rust, c++, and python
  4 projects | /r/rust | 30 Dec 2022

  Reading from Python requires a wrapper, using pybind11 this is fairly done.

• [ADVICE] Python to C++
  1 project | /r/cpp_questions | 12 Oct 2022

  Also I can highly recommend starting using C++ to augment your Python code, i.e. find the parts that are slow or undoable in Python and write those in C++ then expose them as Python functions. You can use https://github.com/pybind/pybind11 to call C++ code from Python.

Hashmaps

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Tracking mentions began in Dec 2020.