🌐 Mailman 3 June 2025 - Python-list - python.org

[RELEASE] Python 3.13.5 is now available (yes, really...)
by Thomas Wouters June 11, 2025

June 11, 2025

When I was younger (...hush) we would call this a brown paper bag release, but actually, we shouldn’t hide from our mistakes. We’re only human. So, please enjoy: <https://discuss.python.org/t/python-3-13-5-is-now-available-yes-really/9521…>Python 3.13.5 https://www.python.org/downloads/release/python-3135/ <https://discuss.python.org/t/python-3-13-5-is-now-available-yes-really/9521…>This is the fifth maintenance release of Python 3.13 Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.5 is the fifth maintenance release of 3.13. 3.13.5 is an expedited release to fix a couple of significant issues with the 3.13.4 release: - gh-135151 <https://github.com/python/cpython/issues/135151>: Building extension modules on Windows for the regular (non-free-threaded) build failed. - gh-135171 <https://github.com/python/cpython/issues/135171>: Generator expressions stopped raising TypeError (when iterating over non-iterable objects) at creation time, delaying it to first use. - gh-135326 <https://github.com/python/cpython/issues/135326>: Passing int-like objects (like numpy.int64) to random.getrandbits() failed, when it worked before. Several other bug fixes (which would otherwise have waited until the next release) are also included. Special thanks to everyone who worked hard the last couple of days to fix these issues as quickly as possible. Full Changelog <https://docs.python.org/release/3.13.5/whatsnew/changelog.html#python-3-13-5> <https://discuss.python.org/t/python-3-13-5-is-now-available-yes-really/9521…>More resources - Online Documentation <https://docs.python.org/3.13/> - PEP 719 <https://peps.python.org/pep-0719/>, 3.13 Release Schedule (not that you’ll find this release on there yet.) - Report bugs via GitHub <https://github.com/python/cpython/issues>. - Help fund Python directly <https://www.python.org/psf/donations/python-dev/> (or via GitHub Sponsors <https://github.com/sponsors/python>), and support the Python community <https://www.python.org/psf/donations/>. <https://discuss.python.org/t/python-3-13-5-is-now-available-yes-really/9521…>Stay safe and upgrade! As always, upgrading is highly recommended to all users of 3.13. <https://discuss.python.org/t/python-3-13-5-is-now-available-yes-really/9521…>Enjoy the 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 hey, it’s us again, your release team, Thomas Wouters Ned Deily Steve Dower Łukasz Langa

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Tkinter: repeated calls to Text.window_create() gradually slow down
by John O'Hagan June 10, 2025

June 10, 2025

Hi list I noticed this issue with a long-running application that displays information from a variable number of sources by opening an embedded window on a Text widget for each new source, and closing it when the source is completed. To prevent increasing memory use, the widgets inside the windows are "recycled", i.e. hidden using a tag and cached when the window is closed, to be re-used when needed. New widgets are only created when the cache is empty. The code below demonstrates the issue by rapidly creating and hiding a window containing the same Label widget. On my machine, each create_window call initially takes < 1 ms, but a few minutes later increases to several ms. After several hours, it takes a few seconds for each operation. If the commented line removing the tag is used instead of the window_create call, there is no slowdown. Unfortunately this is not useful in the real program, which requires that new windows open in a specified position. AFAIK there is no way to move an embedded window on a Text widget other than by re-calling window_create (but I'd be glad to be wrong about that). Any insights or suggestions? ------------------------------- from time import time from tkinter import * root = Tk() button = Button(root, text='Run') text = Text(root) text.tag_config('hide', elide=True) label=Label(text, text='running') def show_and_hide(): if button['text']=='Stop': if text.tag_names(label): t = time() #this line gradually gets slower: text.window_create(END, window=label) #this line doesn't: #text.tag_remove('hide', label) print(round((time() - t) * 1000)) else: text.tag_add('hide', label) button.after(10, show_and_hide) def run(): if button['text']=='Run': button['text'] = 'Stop' text.window_create(END, window=label) show_and_hide() else: button['text'] = 'Run' text.tag_add('hide', label) button['command'] = run button.pack() text.pack() mainloop()

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ANN: Python Meeting Düsseldorf - 18.06.2025
by eGenix Team June 6, 2025

June 6, 2025

/This announcement is in German since it targets a local user group//meeting in Düsseldorf, Germany/ Ankündigung Python Meeting Düsseldorf - Juni 2025 <https://www.egenix.com/company/news/Python-Meeting-Duesseldorf-2025-06-18> Ein Treffen von Python Enthusiasten und Interessierten in ungezwungener Atmosphäre. *18.06.2025, 18:00 Uhr* Raum 1, 2.OG im Bürgerhaus Stadtteilzentrum Bilk <http://www.duesseldorf.de/jugendamt/fam/famfoe/bueh/ac/index.shtml> Düsseldorfer Arcaden <http://www.duesseldorf-arcaden.de/anfahrt.html>, Bachstr. 145, 40217 Düsseldorf <http://maps.google.com/maps?q=51.209169,6.775339&layer=c&sll=51.209353,6.77…> Programm Bereits angemeldete Vorträge: * Klaus Bremer: *Using Python's argparse * * Jochen Wersdörfer: *MCP Server - Connect LLMs to your data * * Detlef Lannert: *WeasyPrint - Print from HTML/CSS to PDF * * Marc-André Lemburg: *DuckLake - Rethinking Lakehouse architectures* Weitere Vorträge können gerne noch angemeldet werden. Bei Interesse, bitte unter info(a)pyddf.de melden. Startzeit und Ort Wir treffen uns um 18:00 Uhr im Bürgerhaus in den Düsseldorfer Arcaden. Das Bürgerhaus teilt sich den Eingang mit dem Schwimmbad und befindet sich an der Seite der Tiefgarageneinfahrt der Düsseldorfer Arcaden. Über dem Eingang steht ein großes "Schwimm’ in Bilk" Logo. Hinter der Tür direkt links zu den zwei Aufzügen, dann in den 2. Stock hochfahren. Der Eingang zum Raum 1 liegt direkt links, wenn man aus dem Aufzug kommt. >>> Eingang in Google Street View <http://bit.ly/11sCfiw> *⚠️ Wichtig*: Bitte nur dann anmelden, wenn ihr absolut sicher seid, dass ihr auch kommt. Angesichts der begrenzten Anzahl Plätze, haben wir kein Verständnis für kurzfristige Absagen oder No-Shows. Einleitung Das Python Meeting Düsseldorf <http://pyddf.de/> ist eine regelmäßige Veranstaltung in Düsseldorf, die sich an Python Begeisterte aus der Region wendet. Einen guten Überblick über die Vorträge bietet unser PyDDF YouTube-Kanal <http://www.youtube.com/pyddf/>, auf dem wir Videos der Vorträge nach den Meetings veröffentlichen. Veranstaltet wird das Meeting von der eGenix.com GmbH <https://www.egenix.com/>, Langenfeld, in Zusammenarbeit mit Clark Consulting & Research <http://www.clark-consulting.eu/>, Düsseldorf: Format Das Python Meeting Düsseldorf <http://pyddf.de/> nutzt eine Mischung aus (Lightning) Talks und offener Diskussion. Vorträge können vorher angemeldet werden, oder auch spontan während des Treffens eingebracht werden. Ein Beamer mit HDMI und FullHD Auflösung steht zur Verfügung. (Lightning) Talk Anmeldung bitte formlos per EMail an info(a)pyddf.de <mailto:info@pyddf.de?subject=Anmeldung Lightning Talk Python Meeting Düsseldorf> Kostenbeteiligung Das Python Meeting Düsseldorf <http://pyddf.de/> wird von Python Nutzern für Python Nutzer veranstaltet. Da Tagungsraum, Beamer und Getränke Kosten produzieren, bitten wir die Teilnehmer um einen Beitrag in Höhe von EUR 10,00 inkl. 19% Mwst. Schüler und Studenten zahlen EUR 5,00 inkl. 19% Mwst. Wir möchten alle Teilnehmer bitten, den Betrag in bar mitzubringen. Anmeldung Da wir nur 25 Personen in dem angemieteten Raum empfangen können, möchten wir bitten, sich vorher anzumelden. *Meeting Anmeldung* bitte per Meetup <https://www.meetup.com/Python-Meeting-Dusseldorf/> Weitere Informationen Weitere Informationen finden Sie auf der Webseite des Meetings: https://pyddf.de/ Viel Spaß ! -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Experts (#1, Jun 06 2025) >>> Python Projects, Coaching and Support ... https://www.egenix.com/ >>> Python Product Development ... https://consulting.egenix.com/ ________________________________________________________________________ ::: We implement business ideas - efficiently in both time and costs ::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 https://www.egenix.com/company/contact/ https://www.malemburg.com/

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Feedback & Discussion: Magic Wormhole 0.19.0 Release Updates
by MyMilestone Card June 4, 2025

June 4, 2025

Hi everyone, I just read the release announcement for Magic Wormhole 0.19.0, and I wanted to start a thread here to appreciate the work and open up discussion for anyone using or interested in it. Some exciting highlights: New status feedback API, finally, some clean visibility into code consumption Better reconnection handling via Dilation timeouts pytest test suite conversion Python 3.9 support dropped (good call in line with ecosystem trends) sdist file renaming (PEP 625 compliance) These seem like solid improvements for both the end-user experience and contributors. Has anyone here already tried out the new version in their workflow? Any performance or UX changes you've noticed? Also, curious if anyone has used the lower-level protocol (beyond file transfers) in a real project, would love to hear about that.

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Python 3.13.4, 3.12.11, 3.11.13, 3.10.18 and 3.9.23 are now available
by Thomas Wouters June 3, 2025

June 3, 2025

Python Release Party It was only meant to be release day for 3.13.4 today, but poor number 13 looked so lonely… And hey, we had a couple of tarfile CVEs that we had to fix. So most of the Release Managers and all the Developers-in-Residence (including Security Developer-in-Residence Seth Michael Larson) came together to make it a full release party. <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Security content in these releases - gh-135034 <https://github.com/python/cpython/issues/135034>: Fixes multiple issues that allowed tarfile extraction filters (filter="data" and filter="tar") to be bypassed using crafted symlinks and hard links.Addresses *CVE 2024-12718* <https://www.cve.org/CVERecord?id=CVE-2024-12718>, *CVE 2025-4138* <https://www.cve.org/CVERecord?id=CVE-2025-4138>, *CVE 2025-4330* <https://www.cve.org/CVERecord?id=CVE-2025-4330>, and *CVE 2025-4517* <https://www.cve.org/CVERecord?id=CVE-2025-4517>. - gh-133767 <https://github.com/python/cpython/issues/133767>: Fix use-after-free in the “unicode-escape” decoder with a non-“strict” error handler. - gh-128840 <https://github.com/python/cpython/issues/128840>: Short-circuit the processing of long IPv6 addresses early in ipaddress <https://docs.python.org/release/3.13.4/library/ipaddress.html#module-ipaddr…> to prevent excessive memory consumption and a minor denial-of-service. In addition to the security fixed mentioned above, a few additional changes to the ipaddress were backported to make the security fixes feasible. (See the full changelogs for each release for more details.) <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Python 3.13.4 In addition to the security fixes, the fourth maintenance release of Python 3.13 contains more than 300 bugfixes, build improvements and documentation changes. https://www.python.org/downloads/release/python-3134/ <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Python 3.12.11 https://www.python.org/downloads/release/python-31211/ <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Python 3.11.13 https://www.python.org/downloads/release/python-31113/ <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Python 3.10.18 https://www.python.org/downloads/release/python-31018/ <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Python 3.9.23 Additional security content in this release (already fixed in older releases for the other versions): - gh-80222 <https://github.com/python/cpython/issues/80222>: Fix bug in the folding of quoted strings when flattening an email message using a modern email policy. Previously when a quoted string was folded so that it spanned more than one line, the surrounding quotes and internal escapes would be omitted. This could theoretically be used to spoof header lines using a carefully constructed quoted string if the resulting rendered email was transmitted or re-parsed. https://www.python.org/downloads/release/python-3921/ <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Stay safe and upgrade! As always, upgrading is highly recommended to all users of affected versions. <https://discuss.python.org/t/python-3-13-4-3-12-11-3-11-13-3-10-18-and-3-9-…>Enjoy the 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 your very tired tireless release team, Thomas Wouters Pablo Galindo Salgado Łukasz Langa Ned Deily Steve Dower

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