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dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54054 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kQBgi-0003rC-CW for qemu-devel@archiver.kernel.org; Wed, 07 Oct 2020 11:49:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59516) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQBel-0002ZX-1S for qemu-devel@nongnu.org; Wed, 07 Oct 2020 11:47:08 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:39563) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kQBeg-000710-I2 for qemu-devel@nongnu.org; Wed, 07 Oct 2020 11:47:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602085619; 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=DXkHwRsyer2KKJ4d5wTtPKz0Kpc2/tHCejdXXi0Lz0Y=; b=e/vq5PJacoK+WF4XruwxvgwT5GM4GaNDYZy7mUfc82/i6jTX9BtOhI3NpA6lQ5Pvmi3hIx PufqAUH4H5beqWm7YOXIgU9Kfufvk9jmsjx9VojJirwfJxok43i/76h3iBNgG7xINHO/sm LxIqTjRm6q0MQM2jNZ/uPQRw1igyQVc= 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-364-Bz2eoZXbONiG0c3K-OPTOw-1; Wed, 07 Oct 2020 11:46:57 -0400 X-MC-Unique: Bz2eoZXbONiG0c3K-OPTOw-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 16F789067BC for ; Wed, 7 Oct 2020 15:46:48 +0000 (UTC) Received: from [10.10.120.38] (ovpn-120-38.rdu2.redhat.com [10.10.120.38]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7606E5576D; Wed, 7 Oct 2020 15:46:47 +0000 (UTC) Subject: Re: [PATCH v5 19/36] qapi/events.py: add type hint annotations To: Markus Armbruster References: <20201005195158.2348217-1-jsnow@redhat.com> <20201005195158.2348217-20-jsnow@redhat.com> <87zh4ye0fh.fsf@dusky.pond.sub.org> <87pn5ucl3n.fsf@dusky.pond.sub.org> From: John Snow Message-ID: <69622744-fb05-2db7-47cf-533a3a3d89ac@redhat.com> Date: Wed, 7 Oct 2020 11:46:46 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <87pn5ucl3n.fsf@dusky.pond.sub.org> 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-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/07 00:44:56 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.742, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=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: qemu-devel@nongnu.org, Eduardo Habkost , Cleber Rosa Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 10/7/20 7:49 AM, Markus Armbruster wrote: > Looks like commit message of PATCH 24 has an answer. > > Copy to all the commits that omit -> None similarly? Probably not needed. It's covered by the class basics section in the mypy manual; https://mypy.readthedocs.io/en/stable/class_basics.html#annotating-init-methods and if you should happen to omit annotations for __init__ entirely as a novice, you will be treated to messages such as these: qapi/source.py:18: error: Function is missing a return type annotation qapi/source.py:18: note: Use "-> None" if function does not return a value Found 1 error in 1 file (checked 14 source files) Pretty good error! There's no error if you DO explicitly add a -> None from __init__, but at worst it's just extraneous (but correct) information. I could add a note to the style guide that I prefer omitting the return from __init__. I like omitting as much as I possibly can. (You'll notice I don't always type every local, either -- when local inference is accurate, I leave it alone.) --js