Path: csiph.com!usenet.pasdenom.info!news.albasani.net!news.musoftware.de!wum.musoftware.de!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!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 0.050 X-Spam-Evidence: '*H*': 0.90; '*S*': 0.00; 'sep': 0.09; 'subject:howto': 0.09; 'nesting': 0.16; 'xrange': 0.16; 'wrote:': 0.17; 'drawing': 0.17; 'fairly': 0.21; 'combination': 0.22; 'received:mail-bk0-f46.google.com': 0.22; 'cheers,': 0.23; 'header :In-Reply-To:1': 0.25; 'looks': 0.26; 'candidate': 0.26; 'am,': 0.27; '(e.g.,': 0.27; 'received:209.85.214.46': 0.27; 'message- id:@mail.gmail.com': 0.27; "i'm": 0.29; 'maybe': 0.29; 'fri,': 0.30; 'basic': 0.30; 'stuff': 0.30; 'code': 0.31; 'like:': 0.33; 'to:addr:python-list': 0.33; 'received:google.com': 0.34; 'received:209.85': 0.35; 'add': 0.36; 'but': 0.36; 'should': 0.36; 'level': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'received:209.85.214': 0.39; 'header:Received:5': 0.40; 'range': 0.60; 'levels': 0.66; 'sounds': 0.71; 'subject:handle': 0.84; 'to:name:python': 0.84 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 :content-type; bh=7HxSJZyppq5v0/m2d+TvjJ66JfStF2xJjFrgMnjs4/o=; b=cfk0J4fVbHSqXjbm6yxreNyduiOKNutsbIDo8rcgE1YNw17lVBtz/FD7Gl1fg6YGPJ 2ekRAOhYEmNUobEA/7Ffo01uiii+yx6YE7ydPxZwnpIJzFyQzr+2gCenFLBt+SDqVb4B pPiT6VqOtWYuZXg/G4+Ln0D7bGJu5s3kqrk2umdVTTF3ehw1Y3dUNYIxwBu0uFeMK3K2 DSrk2q/0xM5iHQEpn0WayAgjmLa7Ib5Yk+lbE+hg1VGzAmUZY2vyIT4a+bp/jpmFEkdZ HkU6VoHvpRhwfXOXthjlUGwHwotZK6UjKaC14zamZANKrBjf2M1j7kwMXv49w8XyU+4a ZAmQ== MIME-Version: 1.0 In-Reply-To: References: From: Ian Kelly Date: Fri, 28 Sep 2012 09:49:36 -0600 Subject: Re: howto handle nested for To: Python 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: 24 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1348847408 news.xs4all.nl 6861 [2001:888:2000:d::a6]:54301 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:30406 On Fri, Sep 28, 2012 at 8:39 AM, Neal Becker wrote: > I know this should be a fairly basic question, but I'm drawing a blank. > > I have code that looks like: > > for s0 in xrange (n_syms): > for s1 in xrange (n_syms): > for s2 in xrange (n_syms): > for s3 in xrange (n_syms): > for s4 in range (n_syms): > for s5 in range (n_syms): > > Now I need the level of nesting to vary dynamically. (e.g., maybe I need to add > for s6 in range (n_syms)) > > Smells like a candidate for recursion. Also sounds like a use for yield. Any > suggestions? levels = 6 for combination in itertools.product(xrange(n_syms), levels): # do stuff Cheers, Ian