2010-09-11 26 views
1

我特林得到應該看起來像這樣的代碼:這段Python代碼應打印出一些信息,但不

發送:「GET /xml/atom.xml HTTP/1.0 \ r \ n主機:diveintomark.org \ r \ n用戶代理:Python-urllib/1.17 \ r \ n \ r \ n' 回覆:'HTTP/1.1 410 Gone \ r \ n' header:Date:Sat ,2010 9月11日11時47分19秒GMT
頭:服務器:Apache
頭:內容長度:307
頭:連接:關閉
頭:內容類型:文本/ HTML; charset = iso-8859-1

我輸入的代碼不起作用。誰能告訴我什麼地方錯了:

import httplib, urllib2 

httplib.HTTPConnection.debuglevel = 1 
request = urllib2.Request('http://www.google.co.uk/') 
opener = urllib2.build_opener() 
feeddata = opener.open(request).read() 
+0

歡迎來到SO!請閱讀[編輯幫助](http://stackoverflow.com/editing-help),瞭解如何正確格式化代碼等。並請澄清*不起作用*的意思。你有什麼錯誤嗎? – 2010-09-11 12:14:29

+0

如果你包括你所得到的東西,它會有所幫助 - 即它與你的期望有什麼不同。我運行這段代碼的是'feeddata'包含了www.google.co.uk的完整源代碼 - 這是你得到的嗎? – Stephen 2010-09-11 12:16:53

回答

5

我相信例子是完全錯誤的,試試這個:

import urllib2 

request = urllib2.Request('http://www.google.co.uk/') 
http_handler = urllib2.HTTPHandler(debuglevel=1) 
opener = urllib2.build_opener(http_handler) 
feeddata = opener.open(request).read() 
+0

賓果。你爲什麼要導入httplib?它甚至不需要。 – Stephen 2010-09-11 12:20:43

+0

爲什麼在那裏還有一個httplib導入?另外,你好WoLpH! – ikanobori 2010-09-11 12:21:00

+0

@Stephen,@ikanobori:啊,是的......我只是修改了原始代碼,忘記刪除它。 – Wolph 2010-09-11 12:26:58

1

我得到的東西出來的這個:

httplib.HTTPConnection.debuglevel = 1 
request = urllib2.Request('http://www.google.co.uk/') 
opener = urllib2.build_opener() 
feeddata = opener.open(request).read() 
print feeddata 

這就是我得到的:

C:\Tools\Python-2.6.1\python.exe "C:/Documents and Settings/Michael/My Documents/Projects/Python/learning/core/src/so.py" 
<!doctype html><html><head><meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><title>Google</title><script>window.google={kEI:"GnOLTKeBIIaQeMCv8IgG",kEXPI:"25856,25900,26446",kCSI:{e:"25856,25900,26446",ei:"GnOLTKeBIIaQeMCv8IgG",expi:"25856,25900,26446"},ml:function(){},kHL:"en",time:function(){return(new Date).getTime()},log:function(b,d,c){var a=new Image,e=google,g=e.lc,f=e.li;a.onerror=(a.onload=(a.onabort=function(){delete g[f]}));g[f]=a;c=c||"/gen_204?atyp=i&ct="+b+"&cad="+d+"&zx="+google.time();a.src=c;e.li=f+1},lc:[],li:0,Toolbelt:{}}; 
window.google.sn="webhp";window.google.timers={load:{t:{start:(new Date).getTime()}}};try{}catch(u){}window.google.jsrt_kill=1; 
var _gjwl=location;function _gjuc(){var e=_gjwl.href.indexOf("#");if(e>=0){var a=_gjwl.href.substring(e);if(a.indexOf("&q=")>0||a.indexOf("#q=")>=0){a=a.substring(1);if(a.indexOf("#")==-1){for(var c=0;c<a.length;){var d=c;if(a.charAt(d)=="&")++d;var b=a.indexOf("&",d);if(b==-1)b=a.length;var f=a.substring(d,b);if(f.indexOf("fp=")==0){a=a.substring(0,c)+a.substring(b,a.length);b=c}else if(f=="cad=h")return 0;c=b}_gjwl.href="/search?"+a+"&cad=h";return 1}}}return 0}function _gjp(){!(window._gjwl.hash&& 
window._gjuc())&&setTimeout(_gjp,500)}; 
window._gjp && _gjp()</script><style id=gstyle>body{margin:0}#gog{padding:3px 8px 0}td{line-height:.8em}.gac_m td{line-height:17px}form{margin-bottom:20px}body,td,a,p,.h{font-family:arial,sans-serif}.h{color:#36c;font-size:20px}.q{color:#00c}.ts td{padding:0}.ts{border-collapse:collapse}em{font-weight:bold;font-style:normal}.lst{width:496px}.tiah{width:458px}input{font-family:inherit}a.gb1,a.gb2,a.gb3,a.gb4{color:#11c !important}#gbar,#guser{font-size:13px;padding-top:1px !important}#gbar{height:22px}#guser{padding-bottom:7px !important;text-align:right}.gbh,.gbd{border-top:1px solid #c9d7f1;font-size:1px}.gbh{height:0;position:absolute;top:24px;width:100%}@media all{.gb1{height:22px;margin-right:.5em;vertical-align:top}#gbar{float:left}}a.gb1,a.gb4{color:#00c !important}body{background:#fff;color:black}input{-moz-box-sizing:content-box}a{color:#11c;text-decoration:none}a:hover,a:active{text-decoration:underline}.fl a{color:#4272db}a:visited{color:#551a8b}a.gb1,a.gb4{text-decoration:underline}a.gb3:hover{text-decoration:none}#ghead a.gb2:hover{color:#fff!important}.ds{display:-moz-inline-box}.ds{border-bottom:solid 1px #e7e7e7;border-right:solid 1px #e7e7e7;display:inline-block;margin:3px 0 4px;margin-left:4px}.sblc{padding-top:5px}.sblc a{display:block;margin:2px 0;margin-left:13px;font-size:11px;}.lsbb{background:#eee;border:solid 1px;border-color:#ccC#999 #999 #ccc;height:30px;display:block}.lsb{background:url(/images/srpr/nav_logo14.png) bottom;font:15px arial,sans-serif;border:none;color:#000;cursor:pointer;height:30px;margin:0;outline:0;vertical-align:top}.lsb:active{background:#ccc}.lst:focus{outline:none}.ftl,#fll a{margin:0 12px}#addlang a{padding:0 3px}.gac_v div{display:none}.gac_v .gac_v2,.gac_bt{display:block!important}</style><script>google.y={};google.x=function(e,g){google.y[e.id]=[e,g];return false};</script></head><body bgcolor=#ffffff text=#000000 link=#0000cc vlink=#551a8b alink=#ff0000 onload="document.f.q.focus();if(document.images)new Image().src='/images/srpr/nav_logo14.png'" ><textarea id=csi style=display:none></textarea><div id=ghead><div id=gbar><nobr><b class=gb1>Web</b> <a onclick=gbar.qs(this) href="http://www.google.co.uk/imghp?hl=en&tab=wi" class=gb1>Images</a> <a onclick=gbar.qs(this) href="http://video.google.co.uk/?hl=en&tab=wv" class=gb1>Videos</a> <a onclick=gbar.qs(this) href="http://maps.google.co.uk/maps?hl=en&tab=wl" class=gb1>Maps</a> <a onclick=gbar.qs(this) href="http://news.google.co.uk/nwshp?hl=en&tab=wn" class=gb1>News</a> <a onclick=gbar.qs(this) href="http://www.google.co.uk/prdhp?hl=en&tab=wf" class=gb1>Shopping</a> <a href="http://mail.google.com/mail/?hl=en&tab=wm" class=gb1>Gmail</a> <a href="http://www.google.co.uk/intl/en/options/" class=gb1 style="text-decoration:none"><u>more</u> &raquo;</a></nobr></div><div id=guser width=100%><nobr><span id=gbn class=gbi></span><span id=gbf class=gbf></span><span id=gbe><a href="/url?sa=p&pref=ig&pval=3&q=http://www.google.co.uk/ig%3Fhl%3Den%26source%3Diglk&usg=AFQjCNH9dUJQAsNWnO3XKq2EIPgFbczqlA" class=gb4>iGoogle</a> | </span><a href="/preferences?hl=en" class=gb4>Settings</a> | <a href="https://www.google.com/accounts/Login?hl=en&continue=http://www.google.co.uk/" class=gb4>Sign in</a></nobr></div><div class=gbh style=left:0></div><div class=gbh style=right:0></div></div> <center><br clear=all id=lgpd><div id=lga><div style="padding:28px 0 3px"><div align=left style="background:url(/intl/en_com/images/srpr/logo1w.png) no-repeat;height:110px;width:276px" title="Google" id=logo onload="window.lol&&lol()"><div nowrap style="color:#777;font-size:16px;font-weight:bold;left:214px;position:relative;top:70px">UK</div></div></div><br></div><form action="/search" name=f><table cellpadding=0 cellspacing=0><tr valign=top><td width=25%>&nbsp;</td><td align=center nowrap><input name=hl type=hidden value=en><input name=source type=hidden value=hp><input type=hidden name=ie value="ISO-8859-1"><div class=ds style="height:32px;margin:4px 0"><input autocomplete="off" maxlength=2048 name=q class="lst" title="Google Search" value="" size=57 style="background:#fff;border:1px solid #ccc;border-bottom-color:#999;border-right-color:#999;color:#000;font:18px arial,sans-serif bold;height:25px;margin:0;padding:5px 8px 0 6px;vertical-align:top"></div><br style="line-height:0"><span class=ds ><span class=lsbb><input name=btnG type=submit value="Google Search" class=lsb></span></span><span class=ds><span class=lsbb><input name=btnI type=submit value="I&#39;m Feeling Lucky" class=lsb></span></span></td><td nowrap width=25% align=left class=sblc><a href="/advanced_search?hl=en">Advanced Search</a><a href="/language_tools?hl=en">Language Tools</a></td></tr></table></form><div style="font-size:83%;min-height:3.5em"><br></div><div id=res></div><span id=footer><center id=fctr><div style="font-size:10pt"><div id=fll style="margin:19px auto 19px auto;text-align:center"><a href="/intl/en/ads/">Advertising&nbsp;Programmes</a><a href="/services/">Business Solutions</a><a href="/intl/en/about.html">About Google</a><a href="http://www.google.com/ncr">Go to Google.com</a></div></div><p style="color:#767676;font-size:8pt">&copy; 2010 - <a href="/intl/en/privacy.html">Privacy</a></p></center></span> <div id=xjsd></div><div id=xjsi><script>if(google.y)google.y.first=[];if(google.y)google.y.first=[];google.dstr=[];google.rein=[];window.setTimeout(function(){var a=document.createElement("script");a.src="/extern_js/f/CgJlbhICdWsgACswRTgBLCswWjgALCswDjgALCswFzgALCswJzgELCswPDgALCswCjhzQB0sKzAWOAAsKzAlOM-IASwrMEA4EywrMEE4BSwrMFQ4ASwrMBg4ACwrMCY4DiyAAheQAhs/N_JFQ4PkHl4.js";(document.getElementById("xjsd")||document.body).appendChild(a);if(google.timers&&google.timers.load.t)google.timers.load.t.xjsls=(new Date).getTime();},0); 
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Process finished with exit code 0 

爲什麼你會認爲沒有'print'聲明會打印什麼?

+1

調試標誌應按照他的問題所示打印標題。這個具體的例子來自'diveintopython'教程,它似乎有缺陷。 – Wolph 2010-09-11 12:28:14

+0

謝謝,WoLpH。我不知道。我剪切和粘貼代碼並自己運行,得到相同的結果。添加印刷品的確有竅門。 – duffymo 2010-09-11 12:42:52

+0

它與我所期望的不同之處在於它沒有打印出任何標題,它什麼也沒做。在debuglvel = 1的情況下,WoLpH建議我得到我想要的。感謝您的編碼,WolpH。另外,正如WoLpH所說,Dive Into Python中的代碼似乎有缺陷。 – Extractfreeze 2010-09-13 19:26:12