Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

You don't necessarily need rpath actually. The Linux loader has a bug/feature where once it has successfully loaded a library with a given soname, then any future requests for that soname within the same process will automatically return that same library, regardless of rpath settings etc. So as lo

Re: [Python-Dev] PEP 590 discussion

On 4/10/19 7:05 PM, Jeroen Demeyer wrote: On 2019-04-10 18:25, Petr Viktorin wrote: Hello! I've had time for a more thorough reading of PEP 590 and the reference implementation. Thank you for the work! And thank you for the review! I'd now describe the fundamental difference between PEP 580

[Python-Dev] PEP 580/590 discussion

So, I spent another day pondering the PEPs. I love PEP 590's simplicity and PEP 580's extensibility. As I hinted before, I hope they can they be combined, and I believe we can achieve that by having PEP 590's (o+offset) point not just to function pointer, but to a {function pointer; flags} str

Re: [Python-Dev] PEP 590 discussion

Hi Mark! See my more general reply; here I'll just tie loose ends with a few +1s. On 4/14/19 7:30 AM, Mark Shannon wrote: On 10/04/2019 5:25 pm, Petr Viktorin wrote: [...] PEP 590 is built on a simple idea, formalizing fastcall. But it is complicated by PY_VECTORCALL_ARGUMENTS_OFFSET and Py_

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

On 2019-04-24, Victor Stinner wrote: > The current blocker issue is that the Py_DEBUG define imply the > Py_TRACE_REFS define I think your change to make Py_TRACE_REFS as separate configure flag is fine. I've used the trace fields to debug occasionally but I don't use it often enough to need it e

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

On 24.04.2019 17:03, Antoine Pitrou wrote: On Wed, 24 Apr 2019 01:44:17 +0200 Victor Stinner wrote: The first requirement for the use case is that a Python debug build supports the ABI of a release build. The current blocker issue is that the Py_DEBUG define imply the Py_TRACE_REFS define: PyOb

[Python-Dev] Typing Summit at PyCon US

I'd like to remind everyone that in 8 days, at PyCon US in Cleveland, we'll have the Typing Summit (the day after the Language Summit). There's still room to register ! So far I've received just under 20 registrations -- there's room for at least 20 more! The

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

Jeroen Demeyer schrieb am 24.04.19 um 09:24: > On 2019-04-24 01:44, Victor Stinner wrote: >> I would like to >> be able to run C extensions compiled in release mode on a Python >> compiled in debug mode > > That seems like a very good idea. I would certainly use the debug mode > while developing C

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

On Wed, 24 Apr 2019 18:02:18 +0200 Victor Stinner wrote: > > I see 2 solutions: > > (1) Use a different directory. If "libpython" gets the same filename > in release and debug mode, at least, they must be installed in > different directories. If libpython build in debug mode is installed > in /u

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

Hum, I found issues with libpython: C extensions are explicitly linked to libpython built in release mode. So a debug python loading a C extension may load libpython in release mode, whereas libpython in debug mode is already loaded. When Python is built with --enable-shared, the python3.7 program

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

On Wed, 24 Apr 2019 01:44:17 +0200 Victor Stinner wrote: > > The first requirement for the use case is that a Python debug build > supports the ABI of a release build. The current blocker issue is that > the Py_DEBUG define imply the Py_TRACE_REFS define: PyObject gets 2 > extra fields (_ob_prev

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

On 24.04.2019 3:50, Ivan Pozdeev via Python-Dev wrote: On 24.04.2019 2:44, Victor Stinner wrote: Hi, Two weeks ago, I started a thread "No longer enable Py_TRACE_REFS by default in debug build", but I lost myself in details, I forgot the main purpose of my proposal... Let me retry from scratch

Re: [Python-Dev] Use C extensions compiled in release mode on a Python compiled in debug mode

On 2019-04-24 01:44, Victor Stinner wrote: I would like to be able to run C extensions compiled in release mode on a Python compiled in debug mode That seems like a very good idea. I would certainly use the debug mode while developing CPython or C extensions. _