X-Received: by 10.236.84.141 with SMTP id s13mr447750yhe.5.1400038712350; Tue, 13 May 2014 20:38:32 -0700 (PDT) X-Received: by 10.140.95.141 with SMTP id i13mr24912qge.3.1400038712287; Tue, 13 May 2014 20:38:32 -0700 (PDT) Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!peer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!r10no4185766igi.0!news-out.google.com!gi6ni900igc.0!nntp.google.com!c1no6079974igq.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.python Date: Tue, 13 May 2014 20:38:32 -0700 (PDT) Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=71.191.145.179; posting-account=JgVcHwoAAABxVCFZ07cqn83kPmGFfR5x NNTP-Posting-Host: 71.191.145.179 User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <2f08e970-1334-4e7f-ba84-14869708a73b@googlegroups.com> Subject: New to Python. For in loops curiosity From: Leonardo Petry Injection-Date: Wed, 14 May 2014 03:38:32 +0000 Content-Type: text/plain; charset=ISO-8859-1 X-Received-Bytes: 1762 X-Received-Body-CRC: 2720401921 Xref: csiph.com comp.lang.python:71526 Hi All, So I am starting with python and I have been working on some simple exercises. Here is something I found curious about python loops This loop run each character in a string def avoids(word,letters): flag = True for letter in letters: if(letter in word): flag = False return flag The loop below (at the bottom) runs each line of the file fin = open('wordplay.txt'); user_input = raw_input('Enter some characters: ') count = 0 for line in fin: word = line.strip() if(avoids(word, user_input)): count += 1; This is just too convenient. Basically my question is: Why is python not treating the contents of wordplay.txt as one long string and looping each character? Any comment is greatly appreciate. Thanks