Mailman 3 June 2021 - python-committers

Roundup to GitHub Issues migration
by Ezio Melotti Aug. 5, 2021

Aug. 5, 2021

As you might know, PEP 581 (Using GitHub Issues for CPython) has been approved. I've been working with Ewa, Ee, the Working Group, the Steering Council, and the GitHub folks to make this happen, and the SC encouraged me to give you all a quick update. This effort is being tracked at <https://github.com/psf/gh-migration/projects/1>: this board reflects the current status of the project. The PEPs (including PEP 588 -- GitHub Issues Migration Plan) haven't been updated yet and might contain outdated information, so please refer to the psf/gh-migration repo for the latest updates. During the next phase I will work with the WG to sort out all the major issues that we might encounter, and then I will once again reach out to you to gather feedback from the wider audience that follows these mailing lists. Best Regards, Ezio Melotti

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Call for resumes: Developer-in-Residence to support CPython
by Ewa Jodlowska July 20, 2021

July 20, 2021

Hello! Through a collaboration, the PSF and SC scoped the role for a Developer-in-Residence. We are now accepting resumes -- see below for details. I am super happy to finally set this in motion! If you have any questions, don't hesitate to reach out. Ee and I are on apply@ so feel free to send questions there as well. A blog will be posted later today informing the community. ------------------------------------------------------------------ The Python Steering Council and the Python Software Foundation are looking to hire a Developer-in-Residence! Background CPython, the reference implementation of Python, is developed and primarily maintained by volunteers. Inspired by the Django Fellowship Program's success ( https://www.djangoproject.com/fundraising/), the PSF has strategically planned to support CPython in a similar way beginning this year. Thanks to the support from sponsors such as Google, this effort is moving forward. The Developer-in-Residence will work full-time for one year to assist CPython maintainers and the Steering Council. Areas of responsibility will include analytical research to understand the project's volunteer hours and funding, investigation of project priorities and their tasks going forward, and begin working on those priorities. We are looking to hire an existing core developer because of the type of work involved and interaction with volunteer core developers and contributors. Need and available funding will determine any extension beyond the first year. Job Description This Developer-in-Residence will continually coordinate with PSF staff and the Steering Council on the following tasks (note: this is not an exhaustive list of all tasks, but an overview of desired outcomes): - Create metrics based on: - Surveying maintainers and community to capture: - a directory showing who maintains what standard library module - interest in maintaining standard library modules - which standard library modules are most important to users - Combine usage and surveyed metrics to determine which standard library modules need help and what the maintainer cost is for standard library modules - Determine additional intersections of data that could be useful - Address Pull Request and Issue backlogs based on the developed metrics and other metrics created by the Steering Council - Create a long-term plan for addressing the backlog - Review personally pull requests & triage issues - Help coordinate core developers/maintainers of specific modules to review pull requests and triage issues - Help maintaining, improving and stabilizing the CPython test suite, including the continuous integration infrastructure and buildbot fleet. - Attend Steering Council meetings quarterly and have regular communications with the PSF staff - Organize virtual sprints (i.e., at PyCon US) to collaborate with other Python core developers to grow the community of Python core developers and simultaneously close a large number of existing issues and pull requests - Provide transparency by proposing and fulfilling a public record as agreed to by the Steering Council and PSF Staff - Publish two blogs on pyfound.blogspot.com throughout the year informing the community on progress (halfway through and at the end of the residency) Necessary skills - Strong project management skills - Must be very organized and detail-oriented - Experience working with CPython volunteers - Excellent written and verbal communication - Experience working with software development teams remotely - Ability to balance demand and prioritize An active maintainer of CPython is preferred. Interested in this position? If you are interested, please send an email to apply(a)python.org with your resume (please include community contributions). The call for resumes will be open until May 16, 2021, AoE. Employment/vendor arrangement will depend on whether the person resides in or outside of the US.

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Please make sure you're following good security practices with your GitHub account
by Brett Cannon June 30, 2021

June 30, 2021

I have discovered someone tried to break into my GitHub account (you can check yourself by going to https://github.com/settings/security-log and looking for "failed to login" attempts for potentially odd geographical locations for yourself). CPython probably would have been the biggest target for them had they gotten in (my work stuff is all open source and it would have required breaking into another account). But GitHub has a completely unique password and MFA turned on, so they were unsuccessful. Please make sure you have a unique password for your GitHub account and that you have 2FA/MFA turned on (I honestly think we should start requiring this; I'm sure we can get money for folks to get security keys). Other languages like PHP have been successfully hacked ( https://arstechnica.com/gadgets/2021/03/hackers-backdoor-php-source-code-af…), so this isn't a hypothetical anymore that we would be targets for folks who want to install a backdoor into one of the world's most popular programming languages and is now mission-critical for a lot of massive corporations and governments.

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PEP 657 Accepted - Include Fine Grained Error Locations in Tracebacks
by Barry Warsaw June 28, 2021

June 28, 2021

I’m happy to announce that PEP 657 (Include Fine Grained Error Locations in Tracebacks) has been unanimously accepted for Python 3.11 by the Python Steering Council. Congratulations Pablo, Batuhan, and Ammar! Cheers, -Barry (on behalf of the Steering Council)

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[RELEASE] Python 3.9.6, 3.8.11, 3.7.11, and 3.6.14 are now available
by Łukasz Langa June 28, 2021

June 28, 2021

Python 3.9.6 Get it here: https://www.python.org/downloads/release/python-396/ <https://www.python.org/downloads/release/python-396/> Python 3.9.6 is the newest major stable release of the Python programming language, and it contains many new features and optimizations. There’s been 146 commits since 3.9.5 which is a similar amount compared to 3.8 at the same stage of the release cycle. See the change log <https://docs.python.org/release/3.9.6/whatsnew/changelog.html> for details. On macOS, we encourage you to use the universal2 binary installer variant whenever possible. The legacy 10.9+ Intel-only variant will not be provided for Python 3.10 and the universal2 variant will become the default download for future 3.9.x releases. You may need to upgrade third-party components, like pip, to later versions once they are released. You may experience differences in behavior in IDLE and other Tk-based applications due to using the newer version of Tk. As always, if you encounter problems when using this installer variant, please check https://bugs.python.org <https://bugs.python.org/> for existing reports and for opening new issues. The next Python 3.9 maintenance release will be 3.9.7, currently scheduled for 2021-08-30. The First Security-Only Release of Python 3.8 Get it here: https://www.python.org/downloads/release/python-3811/ <https://www.python.org/downloads/release/python-3811/> Security content in this release contains three fixes. There’s also two fixes for 3.8.10 regressions. Take a look at the change log <https://docs.python.org/release/3.8.11/whatsnew/changelog.html> for details. According to the release calendar specified in PEP 569 <https://www.python.org/dev/peps/pep-0569/>, Python 3.8 is now in security fixes only stage of its life cycle: 3.8 branch only accepts security fixes and releases of those are made irregularly in source-only form until October 2024. Python 3.8 isn’t receiving regular bugfixes anymore, and binary installers are no longer provided for it. Python 3.8.10 was the last full bugfix release of Python 3.8 with binary installers. Security releases of 3.7.11 and 3.6.14 Get them here: https://www.python.org/downloads/release/python-3711/ <https://www.python.org/downloads/release/python-3711/> https://www.python.org/downloads/release/python-3614/ <https://www.python.org/downloads/release/python-3614/> Security content in those releases contains five fixes each. Check out the relevant change logs for 3.7.11 <https://docs.python.org/release/3.7.11/whatsnew/changelog.html> and 3.6.14 <https://docs.python.org/release/3.6.14/whatsnew/changelog.html> for details. Similarly to 3.8, Python 3.7 and 3.6 are now in security fixes only stage of their life cycle. Python 3.7 will be providing them until June 2023 while Python 3.6 ends its life in December 2021. We hope you enjoy the new releases Your friendly release team, Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower> Łukasz Langa @ambv <https://discuss.python.org/u/ambv>

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Trouble bisecting
by Antoine Pitrou June 28, 2021

June 28, 2021

Hello, I haven't bisected the Python source tree in a long time and it seems our current way of making releases is messing it up. # Start on tip of branch 3.9 (3.9)$ git bisect start # 3.9 tip is good (3.9|BISECTING)$ git bisect good # Switch to release 3.9.1, where the bug wasn't fixed yet (3.9|BISECTING)$ git checkout v3.9.1 [...] ((v3.9.1)|BISECTING)$ LANG=C git bisect bad Some good revs are not ancestors of the bad rev. git bisect cannot work properly in this case. Maybe you mistook good and bad revs? How can this be worked around? Not being able to bisect a fix or regression is really annoying. Regards Antoine.

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Fwd: EuroPython 2021: Free tickets for Python Core Developers
by Marc-Andre Lemburg June 25, 2021

June 25, 2021

FYI -------- Forwarded Message -------- Subject: EuroPython 2021: Free tickets for Python Core Developers Date: Fri, 25 Jun 2021 15:31:32 +0200 From: Marc-Andre Lemburg <mal(a)europython.eu> Organization: EuroPython Society (EPS) To: Python List <python-list(a)python.org> In 2019, we have set up the Guido van Rossum Core Developer Grant, to make it easy for Python Core Developers to attend EuroPython, but also to give something back to the core team and add a perk to make core development more attractive. If you are a core developer, please check our grant page for details on how to apply: https://www.europython-society.org/core-grant PS: If you are a core developer and want to organize a core sprint, workshop, language summit or similar event at EuroPython 2021, please get in touch with our program workgroup soon, so that we can help arrange things: program(a)europython.eu PPS: If you want to become a core developer, please have a look at the Python Dev Guide: https://devguide.python.org/coredev/ Quick Summary ------------- EuroPython 2021 will be run online from July 26 - August 1: - Two workshop/training days (July 26 - 27) - Three conference days (July 28 - 30) - Two sprint days (July 31 - August 1) The sessions will be scheduled to ensure they are also accessible for those in the Asian and Americas time zones. More infos are available on our website at https://ep2021.europython.eu/ Help spread the word -------------------- Please help us spread this message by sharing it on your social networks as widely as possible. Thank you ! Link to the blog post: https://blog.europython.eu/europython-2021-schedule-published/ Tweet: https://twitter.com/europython/status/1405538503048327169 Enjoy, -- EuroPython 2021 Team https://ep2021.europython.eu/ https://www.europython-society.org/

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status of smtpd
by Irit Katriel June 24, 2021

June 24, 2021

The documentation for smtpd (https://docs.python.org/3/library/smtpd.html) states that " smtpd <https://docs.python.org/3/library/smtpd.html#module-smtpd> should be considered deprecated" and recommends aiosmtpd <http://aiosmtpd.readthedocs.io/>. Are we planning to remove it from the stdlib? Note that at the moment the smtpd module doesn't emit deprecation warnings, and aiosmtpd is not part of the stdlib. This came up on https://bugs.python.org/issue28533, where we were hoping to be able to move the (properly) deprecated asyncore and asynhat to test.support (because there are still a few tests that use them). It seems that smtpd is that last blocker for that.

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Restarting individual CI runs
by Guido van Rossum June 23, 2021

June 23, 2021

Quite frequently I see PRs that have all but one test green, and one test just hanging for a long time (e.g. 19 hours). It would be useful to have the ability to restart a particular test rather than re-running all tests (by closing and reopening the PR). Does this functionality exist? IIRC on Travis-CI it did exist, but only for privileged users. Does GitHub Actions have such a thing? Example: https://github.com/python/cpython/pull/25551 -- the Address Sanitizer run has been waiting for 19 hours. -- --Guido van Rossum (python.org/~guido) *Pronouns: he/him **(why is my pronoun here?)* <http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-…>

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[RELEASE] Python 3.10.0b3 is available
by Pablo Galindo Salgado June 17, 2021

June 17, 2021

Summer is almost here (at least in half of the planet) and Python 3.10 is finishing baking in the oven. For those of you that want to taste it before is finally ready (and if you are a library developer, you certainly do!) you can have the second-to-last beta now, but be careful as is still very hot ;) https://www.python.org/downloads/release/python-3100b3/ #This is a beta preview of Python 3.10 Python 3.10 is still in development. 3.10.0b3 is the third of four planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. We strongly encourage maintainers of third-party Python projects to test with 3.10 during the beta phase and report issues found to the Python bug tracker as soon as possible. While the release is planned to be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (Monday, 2021-08-02). Our goal is to have no ABI changes after beta 4 and as few code changes as possible after 3.10.0rc1, the first release candidate. To achieve that, it will be extremely important to get as much exposure for 3.10 as possible during the beta phase. Please keep in mind that this is a preview release and its use is not recommended for production environments. The next pre-release of Python 3.10 will be 3.10.0b4, currently scheduled for Saturday, 2021-07-10. #And now for something completely different There are no green stars. Why? In general, objects don’t emit a single wavelength of light when they shine. Instead, they emit photons in a range of wavelengths. If you were to use some sort of detector that is sensitive to the wavelengths of light emitted by an object, and then plotted the number of them versus wavelength, you get a lopsided plot called a blackbody curve. For an object as hot as the Sun, that curve peaks at blue-green, so it emits most of its photons there. But it still emits some that are bluer, and some that are redder. When we look at the Sun, we see all these colors blended together. Our eyes mix them up to produce one color: white. A warmer star will put out more blue, and a cooler one redder, but no matter what, our eyes just won’t see that as green. Due to how we perceive color, the only way to see a star as being green is for it to be only emitting green light. But as starts always emit radiation following the blackbody curve, that’s pretty much impossible. # We hope you enjoy those new releases! Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation. Regards from very cloudy London, Your friendly release team, Pablo Galindo @pablogsal Ned Deily @nad Steve Dower @steve.dower

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