Mailman 3 September 2018 - capi-sig

[capi-sig]Open questions about borrowed references
by Victor Stinner Sept. 4, 2018

Sept. 4, 2018

Hi, I'm working on the implementation of my new C API. Modifying macros to use function calls is straighforward, but it seems like borrowed references is a big issue. Doc/data/refcounts.dat helps to discover a few functions and macros, but when writing a test suite on the C API, I found many more functions: Py_TYPE(), Py_SETREF(), PyList_SetItem(), etc. https://pythoncapi.readthedocs.io/bad_api.html#borrowed-references I see borrowed references as a threat to optimizations, because we … [View More]

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[capi-sig]Re: New pythoncapi GitHub organization and creation of a test suite for the Python C API
by Jeroen Demeyer Sept. 3, 2018

Sept. 3, 2018

On 2018-09-03 20:50, Brett Cannon wrote: > The worry of unintended issues due to Cython > happening to use an C API that's actually under test seems like a > reasonable worry. We're using Python scripts and Python classes to run the standard Python test suite and nobody seems to find that a problem...

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[capi-sig]Re: New pythoncapi GitHub organization and creation of a test suite for the Python C API
by Jeroen Demeyer Sept. 3, 2018

Sept. 3, 2018

On 2018-08-31 10:31, Victor Stinner wrote: > I don't wante to write unit tests with Cython, cffi or anything else, > because I really need very thin control on everything. You don't need "very thin control on *everything*". You need very thin control on specific parts of the testsuite. And that's the nice thing about Cython: you can easily shift the amount of control that you take. You can write the usual unittest classes and test_FOO methods where you don't care much about control … [View More]

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[capi-sig]New pythoncapi GitHub organization and creation of a test suite for the Python C API
by Victor Stinner Sept. 3, 2018

Sept. 3, 2018

Hi, To be able to work on a fork of CPython, I decided to create a new GitHub organization: https://github.com/pythoncapi/ I didn't want to work on my personal fork of CPython (vstinner/cpython). The organization has a single member: me, but I invited Eric Snow, Barry Warsaw and Pablo Galindo. Tell me if you want to join! I moved my documentation there, the source of https://pythoncapi.readthedocs.io/ website: https://github.com/pythoncapi/pythoncapi/ And I just forked CPython: … [View More]

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