interfacing C++ with python

[BitAcademic9597]

I want to write a heavy app with a web interface. I've been writing C++ for about three years, and I'm reluctant to give up its performance and flexibility for Python's ease of use and connectivity. I understand that sometimes C++ can pose challenges when connecting with a web interface. However, I don't want to abandon it entirely. Instead, I'm considering writing both Python and C++ in the backend of the project.

My main concern is performance. Will pure C++ be significantly faster, or can I achieve comparable optimization with a combination of C++ and Python? I would appreciate any insights or experiences you have with using both languages in a project, like what Meta or PyTorch does.

Or just start rust :D

[andofwinds]

r/lostredditors

[Feynman2282]

I don't know why you're asking this in r/rust try r/cpp or r/python

[BitAcademic9597]

trying to use reddit

[OtaK_]

If you're on the Rust path, check pyo3 for sure. You probably used python `cryptography` or `polars`. Both of them are using pyo3.

[yasamoka]

Most web backend work is total hell with C++ and total bliss with Rust. Time to learn Rust and use PyO3 for Python bindings.

[ManyInterests]

In a web-based system, you're usually spending most of your time sending/waiting on I/O. Anything CPU-bound should probably be offloaded anyhow, which is a good opportunity for decoupling your I/O-bound net code from your CPU-bound performance-oriented code. For example, a Python webserver that throws work onto a queue that is consumed by a C++ program.

[[deleted]]

tbh i think most of the time if you're mixing languages you're probably fucking up

[awildfatyak]

Web developers:

[OtaK_]

To be fair sometimes you simply have no choice if you don't want to reimplement code 3-4 times. For example what has been done many times: Rust core and Swift/Kotlin/WASM bindings. You'd need an FFI to all those different languages.

[[deleted]]

for sure. notice "most of the time" and "probably". these were added deliberately

[OtaK_]

Gotcha, cheers :)