From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 97593C05027 for ; Tue, 14 Feb 2023 17:26:53 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRz4H-0004YR-Tl; Tue, 14 Feb 2023 12:26:13 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRz4G-0004Wm-4D for qemu-devel@nongnu.org; Tue, 14 Feb 2023 12:26:12 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRz4D-0006aM-Nm for qemu-devel@nongnu.org; Tue, 14 Feb 2023 12:26:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1676395568; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=aZWJ/gINMWX/a8YfGdIQ1LP72NKqq4mcIJBahTRmJ9M=; b=f+tnKKmkMNJ4+ArTilZ6mAcOyAJ1LHqdCLuWF0QnBI0ZNbJIFQ0GZP6BvpUKYk07KsvRCA iKDNYs8mBLrQGFgI3cAlau5tWNMOuykgPZrc+CaP3qSXu/soCn2Smmqp8mz601ZFQ/20fr hx+WoFjacDvSIqx8FtAV4jILTZ/Cdfc= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-90-pUN8mdnOMjSAJbF0M6pgLw-1; Tue, 14 Feb 2023 12:26:04 -0500 X-MC-Unique: pUN8mdnOMjSAJbF0M6pgLw-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4932B1C426A6; Tue, 14 Feb 2023 17:26:04 +0000 (UTC) Received: from redhat.com (unknown [10.39.192.80]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 356CB40C10FA; Tue, 14 Feb 2023 17:26:02 +0000 (UTC) Date: Tue, 14 Feb 2023 18:26:01 +0100 From: Kevin Wolf To: Paolo Bonzini Cc: Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= , Markus Armbruster , Peter Maydell , John Snow , qemu-devel , Cleber Rosa , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Thomas Huth , Beraldo Leal , Michael Roth , Wainer dos Santos Moschetta , Qemu-block , Hanna Reitz , Alex =?iso-8859-1?Q?Benn=E9e?= Subject: Re: [PATCH v2 6/7] CI: Stop building docs on centos8 Message-ID: References: <20230210003147.1309376-1-jsnow@redhat.com> <20230210003147.1309376-7-jsnow@redhat.com> <87cz6cpue3.fsf@pond.sub.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Am 14.02.2023 um 15:03 hat Paolo Bonzini geschrieben: > In the case of Python the issue is not the interpreter per se, though > there are a couple new feature in Python 3.7 that are quite nice (for > example improved data classes[1] or context variables[2]). The main > problem as far as I understood (and have seen in my experience) is > linting tools. New versions fix bugs that caused false positives, but > also become more strict at the same time. The newer versions at the > same time are very quick at dropping support for old versions of > Python; while older versions sometimes throw deprecation warnings on > new versions of Python. This makes it very hard to support a single > version of, say, mypy that works on all versions from RHEL8 and SLE15 > to Fedora 38 and Ubuntu 23.04. Why do we have to support a single version of mypy? What is wrong with running an old mypy version with old Python version, and a newer mypy with newer Python versions? Sure, they will complain about different things, but it doesn't feel that different from supporting multiple C compilers in various versions. Kevin