[From nobody Wed Sep 9 13:21:07 2026 Received: (at submit) by bugs.debian.org; 6 Sep 2026 18:10:23 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-118.2 required=4.0 tests=ALL_TRUSTED,BAYES_00, BODY_INCLUDES_PACKAGE,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,FROMDEVELOPER,HAS_PACKAGE,SPF_HELO_NONE, SPF_PASS,USER_IN_DKIM_WELCOMELIST autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 46; hammy, 150; neutral, 118; spammy, 0. spammytokens: hammytokens:0.000-+--Hx-spam-relays-external:sk:stravin, 0.000-+--H*RT:sk:stravin, 0.000-+--Hx-spam-relays-external:311, 0.000-+--H*RT:311, 0.000-+--H*RT:108 Return-path: <maxy@debian.org> Received: from stravinsky.debian.org ([2001:41b8:202:deb::311:108]:53762) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <maxy@debian.org>) id 1x3HJv-003pMC-0B for submit@bugs.debian.org; Sun, 06 Sep 2026 18:10:23 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Content-Type:MIME-Version:Message-ID: Subject:To:From:Date:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=sKnDhC5pwcLdvfyjYCGcz/JJtesL40LXYiu6EtiiwEc=; b=vH8nyuzwtKtZg/fI2hg1tK840H hbE/cz+BukMQnAdjmZ346KhEi2QOLYqByVk5snDNFkAwwydCfsKRiE2iNOVD50DtFrWeJkoE1cMXT RlMaCjh7eBhxKoVYdwRlm32xGe6PaIiiedGKxMsOGOrEXV68Xk3kEck/+el3BmgMBWhJEPBeGQiXO G4oiNPrg4HxxwJmtoVUXmJvSR0EzzC70knTGp16U98IOiT2MQzhL9X4Dv/5HMt8c60gYhw93gCDYM qtu4z89lrh7Pxcl1gGsZKhiTFb8ox7xbqGC/3aRwywOdh0JSbYPPdvrLs4fnYL1jEyX6bPZ2QAECO ZWjQoYJg==; Received: from authenticated-user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <maxy@debian.org>) id 1x3HJr-000uyw-2I for submit@bugs.debian.org; Sun, 06 Sep 2026 18:10:21 +0000 Date: Sun, 6 Sep 2026 20:10:18 +0200 From: Maximiliano Curia <maxy@debian.org> To: submit@bugs.debian.org Subject: nibabel: FTBFS against python 3.15rc2 Message-ID: <ap2sio7H_NFHTIlh@hecuba.gnuservers.com.ar> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="gHQ6PI75SPPoeP8k" Content-Disposition: inline X-Debian-User: maxy Delivered-To: submit@bugs.debian.org --gHQ6PI75SPPoeP8k Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Package: src:nibabel Version: 5.4.2-4 User: debian-python@lists.debian.org Usertags: python3.15 Tags: patch, ftbfs, forky, sid Severity: important Hi! While rebuilding the python related packages against the Python 3.15rc2 version we found that nibabel fails to build from source [1]. The failure happens because test_DeterministicGzipFile and test_DeterministicGzipFile_fileobj fail due to a discrepancy in the default compression levels of gzip files, python 3.15 uses now compresslevel=6 To fix this, I've made a patch to use None as the default compresslevel, and let Python set it, instead of forcing it to 9. I applied the fix in the sandbox [2] to be able to build the packages that depend on nibabel, please consider applying the patch to support the upcoming 3.15 version. Setting the severity to important for now. Once Python 3.15 is released, it will be added to python3-defaults and this bug will become release critical. Happy hacking, [1]: https://debusine.debian.net/debian/r-python-python3.15/artifact/4478755/ [2]: https://debusine.debian.net/debian/r-python-python3.15/ -- "Can you imagine what I would do if I could do all I can?" -- Sun Tzu Saludos /\/\ /\ >< `/ --gHQ6PI75SPPoeP8k Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename=python3.15.patch Description: Fix test failures with Python 3.15 In Python 3.15, gzip.GzipFile changed its default compresslevel from 9 to 6. Allow DeterministicGzipFile to inherit the default compresslevel from GzipFile when unspecified instead of hardcoding 9. Author: Maximiliano Curia <maxy@debian.org> Forwarded: no --- This patch header follows DEP-3: http://dep.debian.net/deps/dep3/ Index: nibabel/nibabel/_compression.py =================================================================== --- nibabel.orig/nibabel/_compression.py +++ nibabel/nibabel/_compression.py @@ -82,7 +82,7 @@ class DeterministicGzipFile(gzip.GzipFil self, filename: str | None = None, mode: Mode | None = None, - compresslevel: int = 9, + compresslevel: int | None = None, fileobj: io.FileIO | None = None, mtime: int = 0, ): @@ -99,19 +99,22 @@ class DeterministicGzipFile(gzip.GzipFil raise TypeError('Must define either fileobj or filename') # Cast because GzipFile.myfileobj has type io.FileIO while open returns ty.IO fileobj = self.myfileobj = ty.cast('io.FileIO', open(filename, modestr)) + kwargs = {} + if compresslevel is not None: + kwargs['compresslevel'] = compresslevel super().__init__( filename='', mode=modestr, - compresslevel=compresslevel, fileobj=fileobj, mtime=mtime, + **kwargs, ) def gzip_open( filename: str, mode: Mode = 'rb', - compresslevel: int = 9, + compresslevel: int | None = None, mtime: int = 0, keep_open: bool = False, ) -> gzip.GzipFile: --gHQ6PI75SPPoeP8k-- ]