this post was submitted on 15 Jun 2024
78 points (91.5% liked)
Python
6327 readers
218 users here now
Welcome to the Python community on the programming.dev Lemmy instance!
π Events
Past
November 2023
- PyCon Ireland 2023, 11-12th
- PyData Tel Aviv 2023 14th
October 2023
- PyConES Canarias 2023, 6-8th
- DjangoCon US 2023, 16-20th (!django π¬)
July 2023
- PyDelhi Meetup, 2nd
- PyCon Israel, 4-5th
- DFW Pythoneers, 6th
- Django Girls Abraka, 6-7th
- SciPy 2023 10-16th, Austin
- IndyPy, 11th
- Leipzig Python User Group, 11th
- Austin Python, 12th
- EuroPython 2023, 17-23rd
- Austin Python: Evening of Coding, 18th
- PyHEP.dev 2023 - "Python in HEP" Developer's Workshop, 25th
August 2023
- PyLadies Dublin, 15th
- EuroSciPy 2023, 14-18th
September 2023
- PyData Amsterdam, 14-16th
- PyCon UK, 22nd - 25th
π Python project:
- Python
- Documentation
- News & Blog
- Python Planet blog aggregator
π Python Community:
- #python IRC for general questions
- #python-dev IRC for CPython developers
- PySlackers Slack channel
- Python Discord server
- Python Weekly newsletters
- Mailing lists
- Forum
β¨ Python Ecosystem:
π Fediverse
Communities
- #python on Mastodon
- c/django on programming.dev
- c/pythorhead on lemmy.dbzer0.com
Projects
- PythΓΆrhead: a Python library for interacting with Lemmy
- Plemmy: a Python package for accessing the Lemmy API
- pylemmy pylemmy enables simple access to Lemmy's API with Python
- mastodon.py, a Python wrapper for the Mastodon API
Feeds
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
These kind of claims always annoy me. Like, sure, there's some room for interpretation there, but at the end of the day, C, C++ and also Rust achieve their speed by having handling baked into the semantics for:
Unless he comes up with a revolutionary new memory management strategy, or achieves a massive jump in static analysis to replace human intelligence, then you simply can't achieve similar speed while keeping the semantics of Python.
That's not really true. C# and Java are reference-based, uses GC and can be multithreaded, and are very comparable to Rust/C++/C performance. Certainly no more than twice as bad. Whereas Python is probably 50x as bad.
The real answer is that Python developers have deliberately avoided worrying about performance when designing the language, until maybe 2 years ago. That means it has ended up being extremely dynamic and difficult to optimise, and the CPython implementation itself has also not focused on performance so it isn't fast.
But I agree the aim of offering C/C++ speed is never going to be met with Python syntax.
They can probably beat or at least match Javascript, which has been heavily optimized, but the cap is going to be something like Lua (not LuaJit) without significant, painful changes.
If you want faster Python today, you can try numba or Cython, both solve the problem in a different way with different tradeoffs.