Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Ian Kelly Newsgroups: comp.lang.python Subject: Re: importing Date: Mon, 7 Mar 2016 09:02:33 -0700 Lines: 27 Message-ID: References: <56DDA44B.7040405@vanderhoff.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: news.uni-berlin.de aymRtBYNeJ+RIWOJKXUHyg10VckJqMlju32rkdz/mDYQ== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.006 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'prefix': 0.07; 'imports': 0.09; 'prefixed': 0.09; 'python': 0.10; 'importing': 0.15; '2016': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'tk()': 0.16; 'wrote:': 0.16; 'attribute': 0.18; 'module,': 0.18; 'typing': 0.18; 'correctly.': 0.22; 'space.': 0.22; 'tkinter': 0.22; 'am,': 0.23; 'errors': 0.23; 'import': 0.24; 'header:In-Reply-To:1': 0.24; 'mon,': 0.24; 'module': 0.25; "doesn't": 0.26; 'van': 0.26; 'message-id:@mail.gmail.com': 0.27; 'errors.': 0.27; 'package.': 0.27; "skip:' 10": 0.28; 'loads': 0.29; 'loading': 0.33; 'add': 0.34; 'received:google.com': 0.35; 'but': 0.36; 'received:209.85': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:209.85.213': 0.37; 'thought': 0.37; 'received:209': 0.38; 'names': 0.38; 'to:addr:python.org': 0.40; 'where': 0.40; 'still': 0.40; 'space': 0.40; 'mar': 0.65; 'to:name:python': 0.84; 'not:': 0.93 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=6TFn5UsPaFw5NkvR0Clh1WjzdmcVyuknQ2AwIqdZHbU=; b=AJKo1jGCFo7bh8WRQWDhN9KquXBLXywPlzeCxzvvAfJq2FtSm5tZXp5WJ0Bw6OhXWv 6Eh4bdYxkbM/7/6orFhhj8rbRWiiwA2KAY99lKhw6B0ZfXs87N0ne68PeMNPmex0jrYS Be+PzSCQYJEiEHLJDgYfTO658FKLh0D2dMYZ/SdshyPX5hmj39Jb7eOKlKjoG4Utj+up UENUPH09dJa7NIAJijYxbpAFiV3l8zGkkjHSBu/FvsqFM8JxciA42dFqNKgl4S08BWLw QYbxCIkVDcmITyR3+X82ngpNk6KYTJN0bqsVCire02/8IeDqIBXP/9L2DvFHYzAySpZC jK/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=6TFn5UsPaFw5NkvR0Clh1WjzdmcVyuknQ2AwIqdZHbU=; b=KLwExS3T5klxPltzjbpjS2OGigHdZXknnjptg/mdBVlFJRntPExobu6/Mw+IK/mtKW GqFkExtcMz0t3PnM9lOblQNs5yRaDlJZCutCoZzbn+W96wmgJg0nhZ1U/CzSLSQqH+vZ Jmh5cCsHNprvi1u4PT3DprLrQdhRtK/HX9fhjDf8Iga+IU9KzDUmRYG1yvVvWfUu3t/I /BQjadltXlCNR/xuAz+rBaH7c8z3dgKAxaHRk88BOJCscpsE9ggJX1b8w+Qs/Mav7B74 Xx14f5dProZUe1Kcqo1QIK4jUoqpfqWOzbPBloSh686fWsDRr6EAJ7j+yH6gQK2WrN91 aBkw== X-Gm-Message-State: AD7BkJL2pg/12SQEj/1ZjUuJJMy0ap8lc+Nd8HstjqQz5iwKgHKls5kYP0qYlD6B9Cw+YqOles+k+U451FTaGw== X-Received: by 10.50.112.10 with SMTP id im10mr12959850igb.93.1457366593186; Mon, 07 Mar 2016 08:03:13 -0800 (PST) In-Reply-To: <56DDA44B.7040405@vanderhoff.org> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:104218 On Mon, Mar 7, 2016 at 8:54 AM, Tony van der Hoff wrote: > I thought I understood this, but apparently not: > Under py3: > > 1. "import tkinter" imports the whole module into the name space. Any access > to names therein must be prefixed with the module name. > ie top = tkinter.Tk() > But tkinter.messagebox.showwarning() errors with "module has no attribute > 'messagebox'" tkinter.messagebox is a module inside the tkinter package. Importing tkinter doesn't automatically import tkinter.messagebox also. > > 2. "from tkinter import *" loads the name space from the module into the > program name space. No need to prefix the module name onto the attribute > name. Pollutes the name space, but makes typing easier. > ie top = Tk() > But messagebox.showwarning() still errors. This is still just loading names from the tkinter module, not its submodules. > 3. in either of the above cases, if I add "from tkinter import messagebox, > the attribute resolves correctly. This is the first place where you actually instruct Python to import tkinter.messagebox.