Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Michael Selik Newsgroups: comp.lang.python Subject: Re: Iteration, while loop, and for loop Date: Tue, 28 Jun 2016 13:15:47 +0000 Lines: 14 Message-ID: References: <079ff112-8f18-4a27-938f-12e4e55a4a5b@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: news.uni-berlin.de 5uFNnEUKBl6hf8TGWFVrlQnzkMpPQtdbYGvV4to4Wjzw== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.014 X-Spam-Evidence: '*H*': 0.97; '*S*': 0.00; 'preferable': 0.09; 'subject:while': 0.09; 'python': 0.10; '2016': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'variable.': 0.16; 'wrote:': 0.16; 'email addr:gmail.com>': 0.18; 'to:2**1': 0.21; 'simpler': 0.22; 'code.': 0.23; 'second': 0.24; 'header:In-Reply- To:1': 0.24; 'not.': 0.27; 'message-id:@mail.gmail.com': 0.27; 'looks': 0.29; 'url:wikipedia': 0.29; 'url:wiki': 0.30; 'code': 0.30; 'version,': 0.30; 'tue,': 0.34; 'received:google.com': 0.35; 'should': 0.36; 'url:org': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'wanted': 0.37; 'someone': 0.38; 'why': 0.39; 'url:en': 0.39; 'to:addr:python.org': 0.40; 'better.': 0.66; 'elizabeth': 0.72 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=Qg1eBE4UlD8aTwR8iLwuokVONyxwA1VYwIK9l7bbu2g=; b=hlpdnTT8ossLqZNfVbDUCCsfp4aOO2e40NAcbWwytAUu8sZ9MzIWMkU4JQ9o8RwtRH iuH5azGcpoe3fRyOpxyobmZIys5/nnXrcyscy4AHhQS7d9aboySXRFqSMdZ4wq1R9aVH NfExz/yL6wEla7gwOakwmTYVOMUTqIpkraPdbQKijTPzyKXOF5GZG2TlTFPO9Pnpd/2V nTKw86LXu1bKQobLokBW0x+TpMacV6azQ+kw8eqSBpRo53+hBHpdLANE4KuVwWAglOhe FL+X54TrIBx825S52G8r8t5b6q7Y0uCt34J7YWlYsDl3LQSovB9Dg/ecd7VH90tNAFtx JEjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=Qg1eBE4UlD8aTwR8iLwuokVONyxwA1VYwIK9l7bbu2g=; b=ksNhpMimyW3kgi36/4gDWqlEJDRs2m/bJQBhrth0MxZvfXdU3EDv7ICoNbF7boxwcr J1kO5jr68y1zgTrJGg36Hc2kD93xACk+779As2W1WpoKyfeju68Z/vLxDeqOL0onyDGz 8uVb66Arf3Y58ddtl4l3s5+Hb57EaF02lEKHGY2oKWe1hsUTA59c4n6pr7XEVwd78HqW 4itZ70YkNFykI+WOlt0OkR/4ofR1BfLspQgKDfoN/SOql4y8TowpV0YHt4rnXE27kSH7 Pv4B8d2YOISPMJMxuAcOTxELiPgoso8wJOiDRQp1AXaVixEtwpNoA1sFrWqoH0l++Rly jpGQ== X-Gm-Message-State: ALyK8tJ96VAVZYDoh4QLEHrJb5r2o17AAoO5NUp/IkbwUikLc9u80WYGbOCG3aH8+4aGLe1zUUcGCNQtU+A4Lw== X-Received: by 10.55.145.67 with SMTP id t64mr1743711qkd.96.1467119757034; Tue, 28 Jun 2016 06:15:57 -0700 (PDT) In-Reply-To: <079ff112-8f18-4a27-938f-12e4e55a4a5b@googlegroups.com> X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: <079ff112-8f18-4a27-938f-12e4e55a4a5b@googlegroups.com> Xref: csiph.com comp.lang.python:110688 On Tue, Jun 28, 2016 at 8:41 AM Elizabeth Weiss wrote: > I do not understand the second code. What is counter? > It looks like someone wanted to make a loop induction variable. https://en.wikipedia.org/wiki/Induction_variable > Why do we use this code if we can use the simpler for loop? > You should not. Use the first version, it's much better. Python for-loops are preferable to while-loops.