bakery2k

8 ms·

31.
by bakery2k 7y ago
RPython's restrictions [1] are quite strict - I'd say its more likely that 99% of normal Python does use features that aren't supported by RPython. [1] https://rpython.readthedocs.io/en/latest/rpyt
32.
by bakery2k 7y ago
I don't think its possible to efficiently compile a dynamically-typed language like Python to statically-typed WASM.
33.
by bakery2k 7y ago
Isn't Pyodide just an interpreter that runs in the browser? So it could never be significantly faster than the regular Python interpreter?
34.
by bakery2k 7y ago
> And they're all used extensively. That's the key. MicroPython is significantly less dynamic than full Python, and would be much easier (but still not easy ) to write a fast JIT for. Unfortunately such a JIT wouldn't be
35.
by bakery2k 7y ago
The article claims that most professional software engineers are "makers" - people who build things for other people to use. I would put myself in this category, but I really struggled when I was a professional software engineer b
36.
by bakery2k 7y ago
Don't all the keys in a Go map have to have the same type? So if you use structs as keys, they all need to have the same length? In Python, you can use (1, 2), (3, 4, 5) and (6, 7, 8, 9, 10) all as keys in the same map.
37.
by bakery2k 7y ago
I thought strings in Go could contain arbitrary byte sequences?
38.
by bakery2k 7y ago
> I wrote up a list of "things I wish python would fix but I think probably never will" What else is on your list? I'd be interested to see what other parts of Python you would wish to change.
39.
by bakery2k 7y ago
> Ends not means, almost entirely, for most people who aren’t full-time programmers. And for many who are. Maybe not on our main projects, but at least for helper tools, side projects etc.
40.
by bakery2k 7y ago
I haven't seen anything about `StopIteration` being removed? In fact, the Python developers recently doubled-down on the design by introducing `StopAsyncIteration`.
41.
Hashmaps Benchmarks – Finding the Fastest, Memory Efficient Hashmap(martin.ankerl.com)
3 points by bakery2k 7y ago|0 comments
42.
by bakery2k 7y ago
What's wrong with parallelism in Go?
43.
by bakery2k 7y ago
> Conclusion: > * Programming language implementations cannot establish confidentiality on today's hardware > * Don't run untrusted code in the same process with secrets it could steal I understand that because of this,
44.
Ask HN: Any experience with Python-in-the-browser (Python-to-JavaScript) tools?
3 points by bakery2k 7y ago|2 comments
45.
by bakery2k 7y ago
Not in terms of performance. No interpreter comes anywhere near the speed of JIT compilers such as LuaJIT, V8 and PyPy.
46.
by bakery2k 7y ago
I have a small, CPU-intensive benchmark which shows the performance of QuickJS to be comparable to other interpreters written in C. It's on par with MicroPython and recent versions of Ruby, and a little faster than CPython and Lua. How
47.
by bakery2k 7y ago
What if I'm writing code that's strictly single-threaded? Presumably malloc could be simpler and/or faster in this special case? Is there a production-ready allocator that's optimized for single-threaded use?
48.
by bakery2k 7y ago
Does anyone know what Matz thinks of Sorbet? He has previously been opposed to adding type annotations to Ruby [1]. This is in sharp contrast to Python, where Guido has overwhelmingly embraced type annotations. [1] https://bugs.r
49.
by bakery2k 7y ago
The article does not mention Python, other than to reference CPython's "Flexible String Representation". However, it's interesting that alternative Python implementations have decided against that model and indeed use UT
50.
by bakery2k 8y ago
> a dynamic scripting language that is designed to have a good, simple JIT Julia is designed along these lines - its JIT compiler is really just does AOT compilation at runtime. JavaScript JITs tend to work along the lines of: 1. I
51.
by bakery2k 8y ago
As I understand it, the JVM can assume that local variables are not modified by other threads. My question is why can't CPython make the same assumption?
52.
by bakery2k 8y ago
On the contrary, the Global Interpreter Lock provides many thread-safety guarantees. These are based on the fact that threads can only be interrupted between, not within, byte code instructions. For example, a single list can safely be exte
53.
by bakery2k 8y ago
I'm not sure which "side channel results" you refer to, but I don't think Python tries to prevent Spectre-style attacks at all. I don't believe it's necessary because, unlike JavaScript and Lua, Python doesn&#x
54.
by bakery2k 8y ago
Unladen Swallow had a small fraction of the resources that Google allocated to V8, though. I think it was only worked on by a few interns. Pyston was better supported, but I think just too ambitious - IIRC it was initially intended to be a
55.
by bakery2k 8y ago
> any thread can change the internal variables of any other thread at any time Why is this different from Java, where the JVM can assume that local variables cannot be changed by other threads? That is, in the absence of special cases, w
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by bakery2k 8y ago
> Every implementation of Python is based on CPython. Not quite true - there are notes in the documentation that call out parts of CPython's behaviour as "implementation-specific". These are quite rare though. I seem to
57.
by bakery2k 8y ago
Thanks for this - I hadn't seen it before. Looks like an implementation of the core Python interpreter designed to work more like the reference interpreter for Lua. Unfortunately it seems to be incomplete - and even if support for exce
58.
by bakery2k 8y ago
LuaJIT is the same, as is V8 (at least with Ignition & TurboFan). The article's assumption that fewer instructions = faster does not necessarily apply to these implementations, but is approximately correct for CPython (because it
59.
by bakery2k 8y ago
Nvidia have used nonsensical model numbers for a long time. Remember the GeForce 4 MX?
60.
by bakery2k 8y ago
How would your Python derivative differ from RustPython?

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