From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from <gentoo-commits+bounces-362706-garchives=archives.gentoo.org@lists.gentoo.org>) id 1Qhf4c-0007Zv-C5 for garchives@archives.gentoo.org; Fri, 15 Jul 2011 09:52:42 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 6B7EE21C161; Fri, 15 Jul 2011 09:52:29 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 3822121C161 for <gentoo-commits@lists.gentoo.org>; Fri, 15 Jul 2011 09:52:29 +0000 (UTC) Received: from pelican.gentoo.org (unknown [66.219.59.40]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTPS id B44D12AC2F9 for <gentoo-commits@lists.gentoo.org>; Fri, 15 Jul 2011 09:52:28 +0000 (UTC) Received: from localhost.localdomain (localhost [127.0.0.1]) by pelican.gentoo.org (Postfix) with ESMTP id 8BDA18003F for <gentoo-commits@lists.gentoo.org>; Fri, 15 Jul 2011 09:52:27 +0000 (UTC) From: "Michał Górny" <mgorny@gentoo.org> To: gentoo-commits@lists.gentoo.org Content-type: text/plain; charset=UTF-8 Reply-To: gentoo-dev@lists.gentoo.org, "Michał Górny" <mgorny@gentoo.org> Message-ID: <03b5890a0ef8a714cff2c0a0c6aaf661eba69552.mgorny@gentoo> Subject: [gentoo-commits] proj/gentoopm:master commit in: gentoopm/basepm/ X-VCS-Repository: proj/gentoopm X-VCS-Files: gentoopm/basepm/pkg.py X-VCS-Directories: gentoopm/basepm/ X-VCS-Committer: mgorny X-VCS-Committer-Name: Michał Górny X-VCS-Revision: 03b5890a0ef8a714cff2c0a0c6aaf661eba69552 Date: Fri, 15 Jul 2011 09:52:27 +0000 (UTC) Precedence: bulk List-Post: <mailto:gentoo-commits@lists.gentoo.org> List-Help: <mailto:gentoo-commits+help@lists.gentoo.org> List-Unsubscribe: <mailto:gentoo-commits+unsubscribe@lists.gentoo.org> List-Subscribe: <mailto:gentoo-commits+subscribe@lists.gentoo.org> List-Id: Gentoo Linux mail <gentoo-commits.gentoo.org> X-BeenThere: gentoo-commits@lists.gentoo.org Content-Transfer-Encoding: quoted-printable X-Archives-Salt: X-Archives-Hash: fa4ddde6908fcf3714483838046657fb commit: 03b5890a0ef8a714cff2c0a0c6aaf661eba69552 Author: Micha=C5=82 G=C3=B3rny <mgorny <AT> gentoo <DOT> org> AuthorDate: Fri Jul 15 09:41:05 2011 +0000 Commit: Micha=C5=82 G=C3=B3rny <mgorny <AT> gentoo <DOT> org> CommitDate: Fri Jul 15 09:41:05 2011 +0000 URL: http://git.overlays.gentoo.org/gitweb/?p=3Dproj/gentoopm.git;= a=3Dcommit;h=3D03b5890a PackageSet: support checking for non-empty (__nonzero__()). --- gentoopm/basepm/pkg.py | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/gentoopm/basepm/pkg.py b/gentoopm/basepm/pkg.py index dc0364b..77532aa 100644 --- a/gentoopm/basepm/pkg.py +++ b/gentoopm/basepm/pkg.py @@ -141,6 +141,19 @@ class PMPackageSet(ABCObject): return False return True =20 + def __nonzero__(self): + """ + Check whether the package set is non-empty. + + @return: True if package set matches at least one package. + @rtype: bool + """ + try: + next(iter(self)) + except StopIteration: + return False + return True + class PMFilteredPackageSet(PMPackageSet): def __init__(self, src, args, kwargs): self._src =3D src