<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div></div><div><br><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>From: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">W W <<a href="mailto:srilyk@gmail.com">srilyk@gmail.com</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Date: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">29 January 2009 11:43:37 GMT</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>To: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">"emmanuel.delaborde" <<a href="mailto:emmanuel.delaborde@cimex.com">emmanuel.delaborde@cimex.com</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Cc: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><a href="mailto:tutor@python.org">tutor@python.org</a></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Subject: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><b>Re: [Tutor] Problem with nested for-in</b></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div> </div><div class="gmail_quote">On Thu, Jan 29, 2009 at 5:06 AM, emmanuel.delaborde <span dir="ltr"><<a href="mailto:emmanuel.delaborde@cimex.com">emmanuel.delaborde@cimex.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> Hello,<br> <br> I have the following snippet :<br> <br> lines = csv.reader(open("CATEGORY.csv","r"))<br> lines2 = csv.reader(open("CATEGORYLIST.csv","r"))<br> <br> old_cats = []<br> for line in lines:</blockquote><div> print line </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br> stories = []<br> for line2 in lines2:</blockquote><div> print line2 </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br> if line2[1] == line[0]:<br> stories.append(line2[0])<br> old_cats.append((line[0],line[2], stories))<br> <br> <br> what happens is that<br> <br> for the first elt of lines, the nested for in runs fine<br> but then never seem to run again while the top level loop iterates through the rest of lines<br> <br> consequently stories accumulate nothing...<br> <br> Can someone explain please ?<br></blockquote></div><br> <div>I would try adding the two print statements above to your code. It might give you an idea about what's going on. It would also be helpful to provide us with some of your original data and the data you get once you've run the program.</div> <div><br></div><div>HTH,</div><div>Wayne</div></blockquote></div><div><br></div><div><br></div><div><br></div></div></body></html>
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