Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!ecngs!feeder2.ecngs.de!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'operator': 0.03; 'args': 0.04; 'val': 0.07; 'conf': 0.09; '3.3,': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'subject:which': 0.16; 'wrote:': 0.17; 'variables': 0.17; 'file.': 0.20; 'import': 0.21; 'skip:_ 20': 0.22; 'example': 0.23; 'least': 0.25; 'header:In- Reply-To:1': 0.25; 'am,': 0.27; '2.6': 0.27; 'message- id:@mail.gmail.com': 0.27; 'print': 0.32; 'to:addr:python-list': 0.33; 'received:google.com': 0.34; 'received:209.85.220': 0.35; 'subject:?': 0.35; 'received:209.85': 0.35; 'there': 0.35; 'skip:m 40': 0.36; 'two': 0.37; 'received:209': 0.37; 'to:addr:python.org': 0.39; '2013': 0.84; 'subject:better': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=U+UJjgxuTtuk8YILupKIb/7Z8O5xdt8VcJd1ppAEbqE=; b=wbKAj6fQ7+hhgrUt/yFbkwaR4kRW429FV6ct0KvCC+zUPnQhoJizVvNfUxb8JET49f 2HdwSi7h53mkFYKdU/IBxfw3eLytu3UD2fVY0Bk3d3bpiPJW8SqlDdYbau5n3q7q0/p8 zLp3oevFJVt3erqxsrnf7LILBketx9ZuK++mv8FOPMxVoscmZ3Q/uHPksiqRPQGpGX2M gFbbFb6AGuW1BbtLiCPVcOQh8aQIMVrWyniMxHYRKU0HtUZWyTjohdx2/Vj4A+BPL9GE UEfdP4o+LirSrSsypw+RNMxiUvvMUHnwUGzAYRQ4ye4+oYolvyxncFbDDKLSVECC8AnB ObUw== MIME-Version: 1.0 X-Received: by 10.52.37.109 with SMTP id x13mr17304646vdj.10.1363613950625; Mon, 18 Mar 2013 06:39:10 -0700 (PDT) In-Reply-To: References: Date: Tue, 19 Mar 2013 00:39:10 +1100 Subject: Re: "eval vs operator.methodcaller" - which is better? From: Chris Angelico To: python-list@python.org Content-Type: text/plain; charset=ISO-8859-1 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 18 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1363613958 news.xs4all.nl 6875 [2001:888:2000:d::a6]:59674 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:41413 On Tue, Mar 19, 2013 at 12:30 AM, Laxmikant Chitare wrote: > moduleName = 'mymodule' #These two variables are read from conf file. > methodName = 'mymethod' > > import operator > myModule = __import__('mymodule') > myMethod = operator.methodcaller('mymethod') > val = myMethod(myModule) > print val Is there any reason not to do the obvious? val = myModule.__getattribute__(methodName)(... args ...) Works in 2.6 and 3.3, at least on the trivial example I tried. ChrisA