The downvotes are also because it's a somewhat cliche comment on HN now. Anytime anyone is doing any with C or C++ that is even indirectly web facing, "this could be unsafe!!!" is an obligatory comment, even though all major tech companies have core components written in C++, and there are big web apps that have been running for years that are mostly written in C or C++. Security is definitely a concern, but these kind of comments can derail interesting discussion, in the same way complaining about font readability or template choice in an otherwise interesting article can.
To be fair most everything under the hood passes through to these libraries. So even sticking with python means passing unvalidated blobs through to libpng/jpeg/tiff or some other low level language.
It's the entire reason python is generally fast enough, anything that's slow generally uses a C lib under the hood anyway.
