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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB975C433F5 for ; Tue, 19 Oct 2021 16:22:01 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 74D2A60F93 for ; Tue, 19 Oct 2021 16:22:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 74D2A60F93 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:52952 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mcrsE-0000ng-Jo for qemu-devel@archiver.kernel.org; Tue, 19 Oct 2021 12:22:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44958) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mcqR2-0001v1-0N for qemu-devel@nongnu.org; Tue, 19 Oct 2021 10:49:48 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:21238) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mcqQu-0008Es-LB for qemu-devel@nongnu.org; Tue, 19 Oct 2021 10:49:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634654979; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=of0nRlCXnCXhgd1yWv9n6B/plzG43d0f0S9OjxqVBbE=; b=AGeexfLe/JybFEz5N4m6BO1rZzzDAoNesXXRfDu6x1kJab6BKCJB6zKKpZi6bNCQ4AXcwU Nao+kSQv4HSjrxAgqon7lySucQh6pY8XtPT3Zr4fUJGmefct3Sop/3wmtwQ2KZZKN0BIj9 XTWXeVgxqMfBkBq5YIumIAIuRos18bQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-103-o8A35AadMkujJmFdo-89Yw-1; Tue, 19 Oct 2021 10:49:36 -0400 X-MC-Unique: o8A35AadMkujJmFdo-89Yw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 70F85802682; Tue, 19 Oct 2021 14:49:35 +0000 (UTC) Received: from scv.redhat.com (unknown [10.22.11.97]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7F8825D6D7; Tue, 19 Oct 2021 14:49:34 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org Subject: [PATCH v2 13/15] iotests/linters: Add workaround for mypy bug #9852 Date: Tue, 19 Oct 2021 10:49:16 -0400 Message-Id: <20211019144918.3159078-14-jsnow@redhat.com> In-Reply-To: <20211019144918.3159078-1-jsnow@redhat.com> References: <20211019144918.3159078-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jsnow@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=170.10.129.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -8 X-Spam_score: -0.9 X-Spam_bar: / X-Spam_report: (-0.9 / 5.0 requ) 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_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Eduardo Habkost , qemu-block@nongnu.org, Hanna Reitz , Cleber Rosa , John Snow Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This one is insidious: if you write an import as "from {namespace} import {subpackage}" as mirror-top-perms (now) does, mypy will fail on every-other invocation *if* the package being imported is a typed, installed, namespace-scoped package. Upsettingly, that's exactly what 'qemu.[aqmp|qmp|machine]' et al are in the context of Python CI tests. Now, I could just edit mirror-top-perms to avoid this invocation, but since I tripped on a landmine, I might as well head it off at the pass and make sure nobody else trips on that same landmine. It seems to have something to do with the order in which files are checked as well, meaning the random order in which set(os.listdir()) produces the list of files to test will cause problems intermittently and not just strictly "every other run". This will be fixed in mypy >= 0.920, which is not released yet. The workaround for now is to disable incremental checking, which avoids the issue. Note: This workaround is not applied when running iotest 297 directly, because the bug does not surface there! Given the nature of CI jobs not starting with any stale cache to begin with, this really only has a half-second impact on manual runs of the Python test suite when executed directly by a developer on their local machine. The workaround may be removed when the Python package requirements can stipulate mypy 0.920 or higher, which can happen as soon as it is released. (Barring any unforseen compatibility issues that 0.920 may bring with it.) See also: https://github.com/python/mypy/issues/11010 https://github.com/python/mypy/issues/9852 Signed-off-by: John Snow Reviewed-by: Hanna Reitz --- tests/qemu-iotests/linters.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tests/qemu-iotests/linters.py b/tests/qemu-iotests/linters.py index 46c28fdcda0..65c4c4e8272 100644 --- a/tests/qemu-iotests/linters.py +++ b/tests/qemu-iotests/linters.py @@ -93,7 +93,9 @@ def show_usage() -> None: if sys.argv[1] == '--pylint': run_linter('pylint', files) elif sys.argv[1] == '--mypy': - run_linter('mypy', files) + # mypy bug #9852; disable incremental checking as a workaround. + args = ['--no-incremental'] + files + run_linter('mypy', args) else: print(f"Unrecognized argument: '{sys.argv[1]}'", file=sys.stderr) show_usage() -- 2.31.1