🌐 Mailman 3 - Pythonmac-SIG - python.org

Towards PyObjC 5.0
by Ronald Oussoren July 10, 2018

July 10, 2018

Hi, Just a quick message about development on PyObjC 5.0. The process of updating PyObjC for macOS 10.14 is going faster than expected, although it has helped that I took time of from work during WWDC to work on this. I expect to push out a first beta release of PyObjC 5 during the EuroPython 2018 sprints. This release should be feature complete (barring surprises in future SDK betas). This is turning out to be a major milestone for PyObjC: with some luck PyObjC 5.0 will support almost all public frameworks in macOS, with the exception of deprecated frameworks that aren’t already wrapped and the Metal frameworks (Metal and MetalPerformanceShaders). Major items on my TODO list until then: - Finish a number of bindings that require manual wrappers due to APIs that are too complex to expres correctly in metadata files - Work on support for APIs that have SIMD types as arguments or return values (such as vector_float3 in ObjC) - Work on providing DeprecationWarnings for APIs that are deprecated in macOS. The basic framework for this is present, I “just” have add correct metadata for this. Beyond 5: My current plan is that PyObjC 5 will be the last version of PyObjC that supports Python 2.7 and PowerPC. I have not yet decided on 32-bit x86 support, that might be dropped as well (at least in the released binaries). Dropping support for 32-bit x86 would primarily make it easier to provide wheels, as the compiler tools in Xcode 10 no longer support that architecture. Ronald

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Python bindings for Metal?
by Ronald Oussoren June 7, 2018

June 7, 2018

Hi, Does anyone know of Python bindings to Apple’s Metal, and related, framework(s)? I’m particularly interested in the compute parts (basically in the Metal equivalent of OpenCL). I’ve search around a bit on PyPI and using Google, but haven’t found anything yet. Ronald P.S. I’m interested in experimenting with Metal, but at this time not enough so to spend a lot of time in first creating bindings.

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PyObjC 4.2.2
by Ronald Oussoren June 4, 2018

June 4, 2018

Hi, I’ve pushed PyObjC 4.2.2 to PyPI. This is a very minor bug fix release that I’ve pushed out to clear the queue before WWDC. There is one new feature with this release: There are now two variants of the binary wheels for Python 3.6 and 3.7, both now have variants for the universal build for macOS 10.6 or later (i386 and x86_64) as well as the 64-bit build for macOS 10.9 or later. Next up is support for the macOS release beyond High Sierra. I expect that this will take quite some time, especially w.r.t. updating the framework wrappers. Ronald

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Upgrade to pip 9.0.3 (due to TLS deprecation)
by Sumana Harihareswara May 2, 2018

May 2, 2018

Mac users: If you are running macOS/OS X version 10.12 or older, you need to upgrade to the latest pip (9.0.3) to connect to the Python Package Index securely: curl https://bootstrap.pypa.io/get-pip.py | python Pip 9.0.3 supports TLSv1.2 when running under system Python on macOS < 10.13. Official release notes: https://pip.pypa.io/en/stable/news/ Context: As PSF blogged last year https://pyfound.blogspot.com/2017/01/time-to-upgrade-your-python-tls-v12.ht… , on June 30, 2018, Python.org sites are going to entirely stop supporting TLS versions 1.0 and 1.1, because our CDN provider is deprecating support for those versions. We are launching the new PyPI (in beta at https://pypi.org) this month and replacing the legacy PyPI (https://pypi.python.org). Here's the beta announcement for the new PyPI: https://pyfound.blogspot.com/2018/03/warehouse-all-new-pypi-is-now-in-beta.… Warehouse, the codebase for the new PyPI, does not support TLS 1.0 or 1.1. We're warning our users early with this message. Also, as of late March, the Python Package Index has started doing brownouts of the deprecated TLS versions. For some portion of each hour, anyone attempting to access PyPI with TLSv1.0 or TLSv1.1 will get a 403 response with an informative error. As we get closer to the deadline, we will be ramping up the amount of time the endpoint is down for the deprecated TLS versions. The ultimate goal is to have it be 100% unavailable on and after April 8th, prior to the final deadline (because we can give a good error message -- once June 30th hits, it will just be an uninformative OpenSSL error). More info: * https://github.com/pypa/warehouse/issues/3293 * https://github.com/pypa/warehouse/issues/3411 * https://status.python.org/incidents/btjtz01lzp88 Thank you. Please publicize this. -- Sumana Harihareswara Warehouse project manager Changeset Consulting https://changeset.nyc

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ANN: PyObjC 4.2.1
by Ronald Oussoren April 3, 2018

April 3, 2018

Hi, I just pushed PyObjC 4.2.1 to PyPI. This is a very minor bug fix release and most people don’t have to upgrade. There’s only a single fix for some people from source: the automatic detection of the use of “—with-system-ffi” works again (it was disabled in 4.2 because that feature didn’t work with /usr/bin/python). The fix doesn’t affect users of binary wheels. Ronald

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Argument is a block, but no signature available
by Ben Byram-Wigfield April 2, 2018

April 2, 2018

I’m trying to use a Completion Handler block as an argument for a Cocoa AVMIDIPlayer method: midiPlayer = AVMIDIPlayer.alloc().initWithContentsOfURL_soundBankURL_error_(midiFile, None, None) midiPlayer.prepareToPlay() midiPlayer.play_(myCompletionHandler) But I get: Argument 2 is a block, but no signature available From what I can find out, this points to a bit in the metadata of PyObjC that needs a bit of work. Is that the case? I’m using the default version 2.5.1 bundled with MacOS. Thanks Ben

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ANN: PyObjC 4.2
by Ronald Oussoren April 1, 2018

April 1, 2018

I’ve just published PyObjC 4.2 on PyPI. This is primarily a bug fix release, but also introduces bindings to the BusinessChat framework introduced in macOS 10.13.4. Those bindings are probably totally uninteresting for most users as the framework can only be used by a small subset of macOS developers. The full list of changes for this release: * Add bindings to the BusinessChat framework introduced in macOS 10.13.4 * Update metadata for Xcode 9.3 * Issue #233 Fix crash in Security.AuthorizationCopyRights() wrapper * Issue #234 Fix crash in AuthorizationExecuteWithPrivileges() wrapper Reported by Vangelis Koukis * Ensure doctest can work with modules containing subclasses of NSObject Reported by Just van Rossum * Issue #236 : Importing can sometimes fail in multi-threaded scenarios Fix by Max Bélanger * Undeprecate treating struct wrappers as sequences. Removing this feature would break too much existing code, hence deprecating is not really an option. Furthermore, this would also break some nice idioms. * Pull request #17: Fix python 3 issues in PyObjCTools.AppHelper and PyObjCTools.Conversion Fix by Max Bélanger Regards, Ronald

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py2app error
by Kevin Walzer Feb. 21, 2018

Feb. 21, 2018

A Tkinter app I am building on 10.13 with py2app 0.14 is crashing with this error: Traceback (most recent call last): File "/Users/kevin/Programming/quickwho/dist/QuickWho.app/Contents/Resources/__boot__.py", line 98, in <module> _run() File "/Users/kevin/Programming/quickwho/dist/QuickWho.app/Contents/Resources/__boot__.py", line 82, in _run exec(compile(source, path, 'exec'), globals(), globals()) File "/Users/kevin/Programming/quickwho/dist/QuickWho.app/Contents/Resources/QuickWho.py", line 8, in <module> from tkinter import * File "<frozen importlib._bootstrap>", line 961, in _find_and_load File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 646, in _load_unlocked File "<frozen importlib._bootstrap>", line 616, in _load_backward_compatible File "tkinter/__init__.pyc", line 36, in <module> ValueError: character U+6573552f is not in range [U+0000; U+10ffff] I am not certain of how to proceed. Please advise. -- Kevin Walzer Code by Kevin/Mobile Code by Kevin http://www.codebykevin.com http://www.wtmobilesoftware.com

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Re: [Pythonmac-SIG] Failure on pip upgrade attempt
by Gerrie Shults Feb. 13, 2018

Feb. 13, 2018

Before my original post, I looked up html.parser in the Python documentation, and everything I saw indicated to me that it was already installed. I have now looked again at the documentation and can find examples using html.parser, but nothing that tells me how to install it. How do I install it? And how can I find what is already installed, and what is available to install without having to download more? Thanks, Gerrie Shults > On Feb 11, 2018, at 18:59, 樊佳亮 <fjl2401(a)163.com> wrote: > > You should first install html.parser this error report is about html.parser > Then rerun pip command > > 发自我的 iPhone > > 在 2018年2月12日，上午5:32，Gerrie Shults <gshults(a)icloud.com <mailto:gshults@icloud.com>> 写道： > >> I’m trying to get the latest version of pip to use to install Flask. >> >> I have a fresh install of Python 3.6.4, and I executed "pip3 install -U pip”, per the instructions from "https://pip.pypa.io/en/stable/installing <https://pip.pypa.io/en/stable/installing>/“, and got the result below. >> >> Why isn’t html.parser available as part of the standard install? What do I need to do to make this work? >> >> Thanks for any help. >> >> Gerrie Shults >> >> >> >> >> $ pip3 install -U pip >> Traceback (most recent call last): >> File "/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3", line 7, in <module> >> from pip import main >> File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/__init__.py", line 28, in <module> >> from pip.vcs import git, mercurial, subversion, bazaar # noqa >> File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/vcs/subversion.py", line 9, in <module> >> from pip.index import Link >> File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/index.py", line 31, in <module> >> from pip.wheel import Wheel, wheel_ext >> File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/wheel.py", line 39, in <module> >> from pip._vendor.distlib.scripts import ScriptMaker >> File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/_vendor/distlib/scripts.py", line 14, in <module> >> from .compat import sysconfig, detect_encoding, ZipFile >> File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/_vendor/distlib/compat.py", line 85, in <module> >> from html.parser import HTMLParser >> ModuleNotFoundError: No module named 'html.parser' >> $ >> >> _______________________________________________ >> Pythonmac-SIG maillist - Pythonmac-SIG(a)python.org <mailto:Pythonmac-SIG@python.org> >> https://mail.python.org/mailman/listinfo/pythonmac-sig <https://mail.python.org/mailman/listinfo/pythonmac-sig> >> unsubscribe: https://mail.python.org/mailman/options/Pythonmac-SIG <https://mail.python.org/mailman/options/Pythonmac-SIG> >>

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Failure on pip upgrade attempt
by Gerrie Shults Feb. 11, 2018

Feb. 11, 2018

I’m trying to get the latest version of pip to use to install Flask. I have a fresh install of Python 3.6.4, and I executed "pip3 install -U pip”, per the instructions from "https://pip.pypa.io/en/stable/installing/“, and got the result below. Why isn’t html.parser available as part of the standard install? What do I need to do to make this work? Thanks for any help. Gerrie Shults $ pip3 install -U pip Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3", line 7, in <module> from pip import main File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/__init__.py", line 28, in <module> from pip.vcs import git, mercurial, subversion, bazaar # noqa File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/vcs/subversion.py", line 9, in <module> from pip.index import Link File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/index.py", line 31, in <module> from pip.wheel import Wheel, wheel_ext File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/wheel.py", line 39, in <module> from pip._vendor.distlib.scripts import ScriptMaker File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/_vendor/distlib/scripts.py", line 14, in <module> from .compat import sysconfig, detect_encoding, ZipFile File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pip/_vendor/distlib/compat.py", line 85, in <module> from html.parser import HTMLParser ModuleNotFoundError: No module named 'html.parser' $

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