News for hackers. Stuff that matters.

A comment on Yes, Python is Slow, and I Don’t Care. Parent comment

Re:Yes, Python is Slow, and I Don’t Care by nerdponx on Friday September 08, 2017 @09:43AM (#15200065)
For some data processing tasks Python can be brutally slow, especially text processing. NumPy is only fast because it's written in C and offloads hard numerical calculations to BLAS.
[ Parent | on HN ]
Re:Yes, Python is Slow, and I Don’t Care by agentgt on Friday September 08, 2017 @10:47AM (#15200558)
Yes but at least Python has very good native access to libraries.

For example I am sure Java is faster at numerical processing than pure Python at least with Python you have the option of writing in native. Python has really good C interop and it maybe considered by some not part of the language but I consider that it is.

Yeah you could write native code for Java via JNI but its not easy (granted its been a while) and for reasons I can't remember why but JNI is slow (probably moving stuff on and off the heap... I can't recall).

[ Parent | on HN ]
Re:Yes, Python is Slow, and I Don’t Care by AstralStorm on Friday September 08, 2017 @12:04PM (#15201338)
Decent, not very good. Ctypes is slow, cython requires extra boilerplate to become performant. Python/C API is even more annoying than that. (Compared even to something like JNI.)
[ Parent | on HN ]