Mailman 3 - pypy-dev

merge of hpy-0.9
by Matti Picus Nov. 3, 2023

Nov. 3, 2023

I merged the hpy-0.9 branch to py3.9. There are a few untranslated failures, and more extra_tests post-translation failures. Most of the extra_test failures are in the debug/trace/hpy_devel/importing tests which cannot really be checked untranslated. Help is welcome to try to debug if the failures are due to using pytest4.0, to something in the test harnesses, or whether there is an actual problem with the hpy backend implementation. Additionally, the branch crashes when importing NumPy … [View More]

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Debug of PyPy segmentation fault / read of coredump
by Yevhenii Yatchenko Oct. 12, 2023

Oct. 12, 2023

Greetings! I'm working on a project related to SIP stack where one of our python interpreters is PyPy. We faced an issue on PyPy 7.3.1 / Python 3.6.9 (OS - Oracle Linux Server release 8.8) where the whole PyPy process crushes with "segmentation fault" for unknown reason. I've tried to search a suitable way how to read the acquired coredump of the PyPy crushed process on the internet, but there are no any. Could you please advice maybe you know how to Debug such situation? Perhaps … [View More]

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PyPy bugfix release 7.3.13
by Matti Picus Sept. 27, 2023

Sept. 27, 2023

I am going to create a new release 7.3.13 to fix a problems in the conda feedstock. I improved the support for multiphase c-extension initialization immediately after the 7.3.12 release, and tried to merge pieces of it to the conda-forge feedstock but it has become too many patches to maintain. If there is anything you think I should add to the release, please file an issue and mark it with the 7.3.13 milestone. If the CFFI 1.16 release happens before I get too deep into the PyPy … [View More]

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Improve symlink support for DirEntry on Windows
by cpburnz＠gmail.com Sept. 22, 2023

Sept. 22, 2023

Hi PyPy devs, In one of my projects I noticed tests involving symlinked directories on Windows failing on PyPy 3.9/10 (v7.3.12), but succeeding on CPython 3.9/10. After digging into `pypy/module/posix/interp_scandir.py`, it looks like `W_DirEntry` has an incomplete implementation for Windows. The `W_DirEntry.is_*()` methods only return results for the symlink (the *follow_symlinks* argument is ignored via `.check_mode()`). The `W_DirEntry.stat()` method only returns the `stat_result` for the … [View More]

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tezos proof generating vm with pypy?
by simon.parry＠karoshibee.com Sept. 13, 2023

Sept. 13, 2023

Hello, I'm starting to spec out how much work/what to do to make a first cut of a proof generating virtual machine (PVM <https://tezos.gitlab.io/alpha/smart_rollups.html> ) for python with pypy (specifically sandboxed2 pypy - but maybe I worry about that later). My understanding is, this is very general and high level, that I would need to modify the running of the pypy interpreter to output certain cryptographic objects at each low-level step of the pypy vm. So as a first … [View More]

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Structure of rtyped low level code
by Julian Waters Sept. 5, 2023

Sept. 5, 2023

Hi all, For fun, I've always wanted to write a translation backend in my own fork of pypy for some time. Is there any resource out there on where to start, for example on how low level rtyped code is structured? best regards, Julian

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Where to begin writing a new translation backend for rpython?
by tanksherman27＠gmail.com Sept. 4, 2023

Sept. 4, 2023

Hi all, Just for fun, I've always wanted to write a new translation backend for the rpython toolchain. Is there any first tips for doing so (Eg how to translate the output of the rtyped low level graphs to the target language)?

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Got an unexpected error trying to allocate some memory for the JIT
by Jeffrey Hu Aug. 9, 2023

Aug. 9, 2023

Hi, Got an unexpected error trying to allocate some memory for the JIT (tried to do mmap() with PROT_EXEC|PROT_READ|PROT_WRITE). This can be caused by a system policy like PAX. You need to find how to work around the policy on your system. I'm running apache on centos, what's the correct folders set for httpd? drwxr-xr-x. jhu jhu system_u:object_r:httpd_sys_content_t:s0 pypy3.10-v7.3.12-linux64 -rwxrwxr-x. jhu jhu system_u:object_r:httpd_exec_t:s0 libpypy3.10-c.so -rw-r--r--. jhu … [View More]

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rpython/rlib/parsing/parsing.py broken
by Samuel Ytterbrink July 22, 2023

July 22, 2023

It seams like the CompuledParser have been broken for the last 16 years, and that seams unbelievable. The error I get is that "symbol" can't be found, and even I "fix" that the parser always succeed, but with no children.... Is there a working copy of this file somewhere else that people use instead? It seams like it's multiple merges that have gone wrong and that is what have lead to this, I don't use hg so I can't help fix that. Anyone else who would like to give it a try?

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rpython: first steps?
by dave.long＠bluewin.ch July 6, 2023

July 6, 2023

I've managed to write a small rpython interpreter, and the jit seems to be working for both single loops and bridged loop nests. Does anyone have any suggestions for what I should be looking at next? Is attempting to play with the structure of the interpreter worthwhile? Or should I be looking to see which helper defs I can mark with the rpython decorators? Or something else? Thanks -Dave

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