概述
urllib
urllib.request.urlopen(url, data=None, [timeout, ]*, cafile=None, capath=None, cadefault=False, context=None)
In [3]:
import urllib.request
respose = urllib.request.urlopen('http://www.baidu.com')
print(respose.read().decode('utf-8'))
<!DOCTYPE html> <!--STATUS OK-->
In [7]:
import urllib.parse as pa
import urllib.request as re
data = bytes(pa.urlencode({'word':'hello'}),encoding='utf-8')
respose1 = re.urlopen('http://httpbin.org/post',data= data)##http 测试网址
print(respose1.read())
respose = re.urlopen('http://httpbin.org/get',timeout=1)
print(respose.read())
b'{n "args": {}, n "data": "", n "files": {}, n "form": {n "word": "hello"n }, n "headers": {n "Accept-Encoding": "identity", n "Content-Length": "10", n "Content-Type": "application/x-www-form-urlencoded", n "Host": "httpbin.org", n "User-Agent": "Python-urllib/3.7", n "X-Amzn-Trace-Id": "Root=1-5e3e3e51-69e094d5904ff335f4ff6d41"n }, n "json": null, n "origin": "180.106.159.191", n "url": "http://httpbin.org/post"n}n'
b'{n "args": {}, n "headers": {n "Accept-Encoding": "identity", n "Host": "httpbin.org", n "User-Agent": "Python-urllib/3.7", n "X-Amzn-Trace-Id": "Root=1-5e3e3e52-8fc4cf59efc13c4b9480c51d"n }, n "origin": "180.106.159.191", n "url": "http://httpbin.org/get"n}n'
In [10]:
import socket
import urllib.request
import urllib.error
try:
respose = urllib.request.urlopen('http://httpbin.org/get',timeout=0.1)
except urllib.error.URLError as e:
if isinstance(e.reason,socket.timeout):
print('time out')
time out
响应
In [11]:
respose = urllib.request.urlopen('https://www.python.org')
print(type(respose))
<class 'http.client.HTTPResponse'>
状态码 响应头
In [13]:
respose = urllib.request.urlopen('https://www.python.org')
print(respose.status)
print(respose.getheaders())
print(respose.getheader('Server'))
200
[('Server', 'nginx'), ('Content-Type', 'text/html; charset=utf-8'), ('X-Frame-Options', 'DENY'), ('Via', '1.1 vegur'), ('Via', '1.1 varnish'), ('Content-Length', '48872'), ('Accept-Ranges', 'bytes'), ('Date', 'Sat, 08 Feb 2020 04:58:59 GMT'), ('Via', '1.1 varnish'), ('Age', '2654'), ('Connection', 'close'), ('X-Served-By', 'cache-iad2144-IAD, cache-hnd18741-HND'), ('X-Cache', 'HIT, HIT'), ('X-Cache-Hits', '1, 7527'), ('X-Timer', 'S1581137940.589289,VS0,VE0'), ('Vary', 'Cookie'), ('Strict-Transport-Security', 'max-age=63072000; includeSubDomains')]
nginx
Request
In [14]:
from urllib import request,parse
url ='http://httpbin.org/post'
dict ={
'name':'Germey'
}
data = bytes(parse.urlencode(dict),encoding = 'utf-8')
req = request.Request(url=url,data = data,method='POST')
req.add_header('User-Agent','Mozilla/4.0(compatible;MSIE 5.5;Windows NT)')
respose =request.urlopen(req)
print(respose.read().decode('utf-8'))
{
"args": {},
"data": "",
"files": {},
"form": {
"name": "Germey"
},
"headers": {
"Accept-Encoding": "identity",
"Content-Length": "11",
"Content-Type": "application/x-www-form-urlencoded",
"Host": "httpbin.org",
"User-Agent": "Mozilla/4.0(compatible;MSIE 5.5;Windows NT)",
"X-Amzn-Trace-Id": "Root=1-5e3e41f9-29f4cd7c2108c784e6d07224"
},
"json": null,
"origin": "180.106.159.191",
"url": "http://httpbin.org/post"
}
Handler
代理
In [16]:
import urllib.request
proxy_handler = urllib.request.ProxyHandler({
'http':'http://127.0.0.1:9743',
'https':'https://127.0.0.1.9473'
})
opener = urllib.request.build_opener(proxy_handler)
respose = opener.open('http://www.baidu.com')
print(respose.read())
---------------------------------------------------------------------------
ConnectionRefusedError Traceback (most recent call last)
D:anaconda3liburllibrequest.py in do_open(self, http_class, req, **http_conn_args)
1316 h.request(req.get_method(), req.selector, req.data, headers,
-> 1317 encode_chunked=req.has_header('Transfer-encoding'))
1318 except OSError as err: # timeout error
D:anaconda3libhttpclient.py in request(self, method, url, body, headers, encode_chunked)
1228 """Send a complete request to the server."""
-> 1229 self._send_request(method, url, body, headers, encode_chunked)
1230
D:anaconda3libhttpclient.py in _send_request(self, method, url, body, headers, encode_chunked)
1274 body = _encode(body, 'body')
-> 1275 self.endheaders(body, encode_chunked=encode_chunked)
1276
D:anaconda3libhttpclient.py in endheaders(self, message_body, encode_chunked)
1223 raise CannotSendHeader()
-> 1224 self._send_output(message_body, encode_chunked=encode_chunked)
1225
D:anaconda3libhttpclient.py in _send_output(self, message_body, encode_chunked)
1015 del self._buffer[:]
-> 1016 self.send(msg)
1017
D:anaconda3libhttpclient.py in send(self, data)
955 if self.auto_open:
--> 956 self.connect()
957 else:
D:anaconda3libhttpclient.py in connect(self)
927 self.sock = self._create_connection(
--> 928 (self.host,self.port), self.timeout, self.source_address)
929 self.sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
D:anaconda3libsocket.py in create_connection(address, timeout, source_address)
726 if err is not None:
--> 727 raise err
728 else:
D:anaconda3libsocket.py in create_connection(address, timeout, source_address)
715 sock.bind(source_address)
--> 716 sock.connect(sa)
717 # Break explicitly a reference cycle
ConnectionRefusedError: [WinError 10061] 由于目标计算机积极拒绝，无法连接。
During handling of the above exception, another exception occurred:
URLError Traceback (most recent call last)
<ipython-input-16-89a2f57641a0> in <module>
6 })
7 opener = urllib.request.build_opener(proxy_handler)
----> 8 respose = opener.open('http://www.baidu.com')
9 print(respose.read())
D:anaconda3liburllibrequest.py in open(self, fullurl, data, timeout)
523 req = meth(req)
524
--> 525 response = self._open(req, data)
526
527 # post-process response
D:anaconda3liburllibrequest.py in _open(self, req, data)
541 protocol = req.type
542 result = self._call_chain(self.handle_open, protocol, protocol +
--> 543 '_open', req)
544 if result:
545 return result
D:anaconda3liburllibrequest.py in _call_chain(self, chain, kind, meth_name, *args)
501 for handler in handlers:
502 func = getattr(handler, meth_name)
--> 503 result = func(*args)
504 if result is not None:
505 return result
D:anaconda3liburllibrequest.py in http_open(self, req)
1343
1344 def http_open(self, req):
-> 1345 return self.do_open(http.client.HTTPConnection, req)
1346
1347 http_request = AbstractHTTPHandler.do_request_
D:anaconda3liburllibrequest.py in do_open(self, http_class, req, **http_conn_args)
1317 encode_chunked=req.has_header('Transfer-encoding'))
1318 except OSError as err: # timeout error
-> 1319 raise URLError(err)
1320 r = h.getresponse()
1321 except:
URLError: <urlopen error [WinError 10061] 由于目标计算机积极拒绝，无法连接。>
Cookie
In [19]:
import http.cookiejar,urllib.request
cookie = http.cookiejar.CookieJar()
handler = urllib.request.HTTPCookieProcessor(cookie)
opener = urllib.request.build_opener(handler)
respose = opener.open('http://www.baidu.com')
for item in cookie:
print(item.name+"="+item.value)
BAIDUID=5FF5A35898786F4EBDC43F265B379A6D:FG=1 BIDUPSID=5FF5A35898786F4E8C14074F5FE29E41 H_PS_PSSID=1424_21105_26350_22160 PSTM=1581139045 delPer=0 BDSVRTM=0 BD_HOME=0
In [30]:
import http.cookiejar,urllib.request
filename = 'cookie.txt'
#cookie = http.cookiejar.MozillaCookieJar(filename) ##两者都可以
cookie = http.cookiejar.LWPCookieJar(filename)
handler = urllib.request.HTTPCookieProcessor(cookie)
opener = urllib.request.build_opener(handler)
respose = opener.open('http://www.baidu.com')
cookie.save(ignore_discard=True,ignore_expires=True)##保存cookie
In [31]:
import http.cookiejar,urllib.request
cookie = http.cookiejar.LWPCookieJar()
cookie.load('cookie.txt',ignore_discard=True,ignore_expires=True)
handler = urllib.request.HTTPCookieProcessor(cookie)
opener = urllib.request.build_opener(handler)
respose = opener.open('http://www.baidu.com')
print(respose.read().decode('utf-8'))
<!DOCTYPE html>
<!--STATUS OK-->
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta content="always" name="referrer">
<meta name="theme-color" content="#2932e1">
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
<link rel="search" type="application/opensearchdescription+xml" href="/content-search.xml" title="百度搜索" />
<link rel="icon" sizes="any" mask href="//www.baidu.com/img/baidu_85beaf5496f291521eb75ba38eacbd87.svg">
<link rel="dns-prefetch" href="//s1.bdstatic.com"/>
<link rel="dns-prefetch" href="//t1.baidu.com"/>
<link rel="dns-prefetch" href="//t2.baidu.com"/>
<link rel="dns-prefetch" href="//t3.baidu.com"/>
<link rel="dns-prefetch" href="//t10.baidu.com"/>
<link rel="dns-prefetch" href="//t11.baidu.com"/>
<link rel="dns-prefetch" href="//t12.baidu.com"/>
<link rel="dns-prefetch" href="//b1.bdstatic.com"/>
<title>百度一下，你就知道</title>
<style id="css_index" index="index" type="text/css">html,body{height:100%}
html{overflow-y:auto}
body{font:12px arial;text-align:;background:#fff}
body,p,form,ul,li{margin:0;padding:0;list-style:none}
body,form,#fm{position:relative}
td{text-align:left}
img{border:0}
a{color:#00c}
a:active{color:#f60}
input{border:0;padding:0}
#wrapper{position:relative;_position:;min-height:100%}
#head{padding-bottom:100px;text-align:center;*z-index:1}
#ftCon{height:50px;position:absolute;bottom:47px;text-align:left;width:100%;margin:0 auto;z-index:0;overflow:hidden}
#ftCon.ftConHot{margin-bottom:33px;bottom:auto;overflow:visible9}
.ftCon-Wrapper{overflow:hidden;margin:0 auto;text-align:center;*width:640px}
.qrcodeCon{text-align:center;position:absolute;bottom:132px;width:100%}
.qrcodeConHot{text-align:center;width:100%;margin-top:-260px;margin-top:-160px9;padding-bottom:33px;position:relative;bottom:0}
@media only screen and (max-height:753px){.qrcodeConHot{margin-top:-258px}}
@media only screen and (max-height:720px){.qrcodeConHot{margin-top:-240px}}
@media only screen and (max-height:680px){.qrcodeConHot{margin-top:-220px}}
@media only screen and (max-height:620px){.qrcodeConHot{margin-top:-180px}}
#qrcode{display:inline-block;*float:left;*margin-top:4px}
#qrcode .qrcode-item{float:left}
#qrcode .qrcode-item-2{margin-left:33px}
#qrcode .qrcode-img{width:106px;height:106px;margin:0 auto;padding:5px;border:1px solid #f3f3f3}
#qrcode .qrcode-item-1 .qrcode-img{background:url(http://s1.bdstatic.com/r/www/cache/static/home/img/qrcode/zbios_09b6296.png) 0 0 no-repeat;background-position:5px 5px}
#qrcode .qrcode-item-2 .qrcode-img{background:url(http://s1.bdstatic.com/r/www/cache/static/home/img/qrcode/nuomi_365eabd.png) 0 0 no-repeat;background-position:5px 5px}
@media only screen and (-webkit-min-device-pixel-ratio:2){#qrcode .qrcode-item-1 .qrcode-img{background-image:url(http://s1.bdstatic.com/r/www/cache/static/home/img/qrcode/zbios_x2_5869f49.png);background-size:106px 106px}
#qrcode .qrcode-item-2 .qrcode-img{background-image:url(http://s1.bdstatic.com/r/www/cache/static/home/img/qrcode/nuomi_x2_55dc5b7.png);background-size:106px 106px}
#qrcode.qrcodeHot .qrcode-item-1 .qrcode-img,#qrcode.qrcodeHot .qrcode-item-2 .qrcode-img{background-size:70px 70px}}
#qrcode .qrcode-text{color:#999;line-height:23px}
#qrcode .qrcode-text a{color:#999;text-decoration:none}
#qrcode .qrcode-text p{text-align:center}
#qrcode .qrcode-text b{color:#666;font-weight:700}
#qrcode .qrcode-text span{letter-spacing:1px}
#qrcode .qrcode-text .title{color:#333;font-size:16px;line-height:32px;letter-spacing:3px}
#qrcode .qrcode-text .sub-title{color:#999;font-size:14px;line-height:14px;font-weight:300}
#qrcode.qrcodeHot .qrcode-img{width:70px;height:70px;border-radius:12px;padding:8px}
#qrcode.qrcodeHot .qrcode-item-1 .qrcode-img{background-image:url(http://s1.bdstatic.com/r/www/cache/static/home/img/qrcode/zbios_little_99d9e00.png)9}
#qrcode.qrcodeHot .qrcode-item-1 .qrcode-img,#qrcode.qrcodeHot .qrcode-item-2 .qrcode-img{background-position:8px 8px;background-size:70px}
#qrcode.qrcodeHot .qrcode-text .title{font-size:14px;letter-spacing:normal}
#qrcode.qrcodeHot .qrcode-text .sub-title{font-size:12px}
.hotword-wrapper{width:600px;background:#FFF;box-shadow:0 3px 8px 0 rgba(0,0,0,.05);-moz-box-shadow:0 3px 8px 0 rgba(0,0,0,.05);-webkit-box-shadow:0 3px 8px 0 rgba(0,0,0,.05);-ms-filter:"progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color='#f9f9f9')";filter:progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color='#f9f9f9');border-radius:20px;margin:40px auto;text-align:center;padding:12px 20px 8px;display:none}
.hotword-title{font-family:PingFangSC-Medium,"Microsoft YaHei";font-size:14px;color:#222;line-height:30px;display:inline-block;float:left;font-weight:700}
.hotword-change{display:block;float:right;font-family:PingFangSC-Regular,"Microsoft YaHei";font-size:14px;color:#999;cursor:pointer;line-height:30px;text-decoration:none}
.hotword-change:hover{color:#07f}
.hotword-item{display:inline-block;font-family:"Microsoft YaHei";font-size:14px;color:#333;line-height:33px;width:30%;width:28%9;text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-right:30px}
.hotword-item:last-child{margin-right:0}
.hotword-item:hover{color:#07f}
.hotword-content-hide{display:none}
.hotword-head{overflow:hidden;margin-bottom:4px}
.hotword-row{text-align:left}
#ftConw{display:inline-block;text-align:left;margin-left:33px;line-height:22px;position:relative;top:-2px;*float:right;*margin-left:0;*position:static}
#ftConw,#ftConw a{color:#999}
#ftConw{text-align:center;margin-left:0}
.bg{background-image:url(http://s1.bdstatic.com/r/www/cache/static/global/img/icons_441e82f.png);background-repeat:no-repeat;_background-image:url(http://s1.bdstatic.com/r/www/cache/static/global/img/icons_d5b04cc.gif)}
.c-icon{display:inline-block;width:14px;height:14px;vertical-align:text-bottom;font-style:normal;overflow:hidden;background:url(http://s1.bdstatic.com/r/www/cache/static/global/img/icons_441e82f.png) no-repeat 0 0;_background-image:url(http://s1.bdstatic.com/r/www/cache/static/global/img/icons_d5b04cc.gif)}
.c-icon-triangle-down-blue{background-position:-480px -168px}
.c-icon-chevron-unfold2{background-position:-504px -168px}
#m{width:720px;margin:0 auto}
#nv a,#nv b,.btn,#lk{font-size:14px}
#nv{height:19px;font-size:16px;margin:0 0 4px;text-align:left;text-indent:137px}
.s_btn{width:95px;height:32px;padding-top:2px9;font-size:14px;background-color:#ddd;background-position:0 -48px;cursor:pointer}
.s_btn_h{background-position:-240px -48px}
.s_btn_wr{width:97px;height:34px;display:inline-block;background-position:-120px -48px;*position:relative;z-index:0;vertical-align:top}
#jgwab{margin-left:19px}
#cp .c-icon-icrlogo,.c-icon-jgwablogo{width:14px;height:17px;display:inline-block;overflow:hidden;background:url(http://s1.bdstatic.com/r/www/cache/static/global/img/icons_441e82f.png) no-repeat;_background-image:url(http://s1.bdstatic.com/r/www/cache/static/global/img/icons_d5b04cc.gif)}
#cp .c-icon-icrlogo{background-position:-600px -96px;position:relative;top:3px}
.c-icon-jgwablogo{background-position:-623px -96px;position:relative;top:3px}
#shouji{margin-right:14px}
#u{display:none}
#c-tips-container{display:none}
#wrapper{min-width:810px;height:100%;min-height:600px}
#head{position:relative;padding-bottom:0;height:100%;min-height:600px}
#head .head_wrapper{height:100%}
#m{position:relative}
#fm{padding-left:40px;top:-37px}
#lh a{margin-left:62px}
#lh .hotword-btn-open{color:#666;margin-right:25px;padding-left:15px;display:none;cursor:pointer}
#lh .hotword-btn-open .open-icon{background:url(http://s1.bdstatic.com/r/www/cache/static/home/img/hotword_btn_eeee3e9.png) no-repeat;background-size:60px;background-image:url(http://s1.bdstatic.com/r/www/cache/static/home/img/hotword_btn_low_039f033.png)9;background-position:-31px -1px;width:15px;height:15px;display:inline-block;vertical-align:middle}
#lh .hotword-btn-open:hover{color:#07f}
#lh .hotword-btn-open:hover .open-icon{background-position:-46px -1px}
#lh .hotword-btn-hide{color:#666;margin-right:25px;padding-left:15px;display:none;cursor:pointer}
#lh .hotword-btn-hide .hide-icon{background:url(http://s1.bdstatic.com/r/www/cache/static/home/img/hotword_btn_eeee3e9.png) no-repeat;background-size:60px;background-image:url(http://s1.bdstatic.com/r/www/cache/static/home/img/hotword_btn_low_039f033.png)9;background-position:-1px -1px;width:15px;height:15px;display:inline-block;vertical-align:middle}
#lh .hotword-btn-hide:hover{color:#07f;background-position:0 0}
#lh .hotword-btn-hide:hover .hide-icon{background-position:-16px -1px}
#lh #seth,#lh #setf{margin-left:0}
#lk{position:absolute;display:none;top:0;right:0;margin:33px 0}
#lk span{font:14px "宋体"}
#nv{position:absolute;display:none;top:0;right:0}
#lm{color:#666;width:100%;height:60px;margin-top:60px;line-height:15px;font-size:13px;position:absolute;top:0;left:0}
#lm a{color:#666}
#pad-version{line-height:40px}
.s_ipt_wr.bg,.s_btn_wr.bg,#su.bg{background-image:none}
.s_btn_wr{width:auto;height:auto;border-bottom:1px solid transparent;*border-bottom:0}
.s_btn{width:100px;height:36px;color:#fff;font-size:15px;letter-spacing:1px;background:#3385ff;border-bottom:1px solid #2d78f4;outline:medium;*border-bottom:0;-webkit-appearance:none;-webkit-border-radius:0}
.s_btn.btnhover{background:#317ef3;border-bottom:1px solid #2868c8;*border-bottom:0;box-shadow:1px 1px 1px #ccc}
.s_btn_h{background:#3075dc;box-shadow:inset 1px 1px 5px #2964bb;-webkit-box-shadow:inset 1px 1px 5px #2964bb;-moz-box-shadow:inset 1px 1px 5px #2964bb;-o-box-shadow:inset 1px 1px 5px #2964bb}
#result_logo{display:none}
#index_logo img{display:inline-block;width:270px;height:129px}
#s_tab{display:none}
.s_form{position:relative;top:38.2%}
.s_form_wrapper{position:relative;top:-191px}
.s_ipt_wr{height:34px}
#head .c-icon-bear-round{display:none}
#form{margin:22px auto 0;width:641px;text-align:left;z-index:100}
#form .bdsug,#fm .bdsug{top:35px}
.bdsug{display:none;position:absolute;width:538px;background:#fff;border:1px solid #ccc;_overflow:hidden;box-shadow:1px 1px 3px #ededed;-webkit-box-shadow:1px 1px 3px #ededed;-moz-box-shadow:1px 1px 3px #ededed;-o-box-shadow:1px 1px 3px #ededed}
.bdsug.bdsugbg ul{background:url(http://s1.bdstatic.com/r/www/cache/static/home/img/sugbg_1762fe7.png) 100% 100% no-repeat;background-size:100px 110px;background-image:url(http://s1.bdstatic.com/r/www/cache/static/home/img/sugbg_90fc9cf.gif)9}
.bdsug li{width:522px;color:#000;font:14px arial;line-height:25px;padding:0 8px;position:relative;cursor:default}
.bdsug li.bdsug-s{background:#f0f0f0}
.bdsug-store span,.bdsug-store b{color:#7A77C8}
.bdsug-store-del{font-size:12px;color:#666;text-decoration:underline;position:absolute;right:8px;top:0;cursor:pointer;display:none}
.bdsug-s .bdsug-store-del{display:inline-block}
.bdsug-ala{display:inline-block;border-bottom:1px solid #e6e6e6}
.bdsug-ala h3{line-height:14px;background:url(//www.baidu.com/img/sug_bd.png) no-repeat left center;margin:8px 0 5px;font-size:12px;font-weight:400;color:#7B7B7B;padding-left:20px}
.bdsug-ala p{font-size:14px;font-weight:700;padding-left:20px}
.bdsug .bdsug-direct{width:auto;padding:0;border-bottom:1px solid #f1f1f1}
.bdsug .bdsug-direct p{color:#00c;font-weight:700;line-height:34px;padding:0 8px;cursor:pointer;white-space:nowrap;overflow:hidden}
.bdsug .bdsug-direct p img{width:16px;height:16px;margin:7px 6px 9px 0;vertical-align:middle}
.bdsug .bdsug-direct p span{margin-left:8px}
.bdsug .bdsug-direct p i{font-size:12px;line-height:100%;font-style:normal;font-weight:400;color:#fff;background-color:#2b99ff;display:inline;text-align:center;padding:1px 5px;*padding:2px 5px 0;margin-left:8px;overflow:hidden}
.bdsug .bdsug-pcDirect{color:#000;font-size:14px;line-height:30px;height:30px;background-color:#f8f8f8}
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var o="{"+e.join(",")+"}";bds.comm.personalData?$.ajax({url:"//www.baidu.com/ups/submit/addtips/?product=ps&tips="+encodeURIComponent(o)+"&_r="+(new Date).getTime(),success:function(){writeCookie(),"function"==typeof t&&t()}}):(writeCookie(),"function"==typeof t&&setTimeout(t,0))}function set(t,e){options[t]=e}function get(t){return options[t]}function writeCookie(){if(options.hasOwnProperty("sugSet")){var t="0"==options.sugSet?"0":"3";clearCookie("sug"),Cookie.set("sug",t,document.domain,"/",expire30y)
}if(options.hasOwnProperty("sugStoreSet")){var t=0==options.sugStoreSet?"0":"1";clearCookie("sugstore"),Cookie.set("sugstore",t,document.domain,"/",expire30y)}if(options.hasOwnProperty("isSwitch")){var e={0:"2",1:"0",2:"1"},t=e[options.isSwitch];clearCookie("ORIGIN"),Cookie.set("ORIGIN",t,document.domain,"/",expire30y)}if(options.hasOwnProperty("imeSwitch")){var t=options.imeSwitch;clearCookie("bdime"),Cookie.set("bdime",t,document.domain,"/",expire30y)}}function writeBAIDUID(){var t,e,o,i=Cookie.get("BAIDUID");
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}catch(e){}window.UPS={writeBAIDUID:writeBAIDUID,reset:reset,get:get,set:set,save:save}}(),function(){var t="http://s1.bdstatic.com/r/www/cache/static/plugins/every_cookie_4644b13.js";("Mac68K"==navigator.platform||"MacPPC"==navigator.platform||"Macintosh"==navigator.platform||"MacIntel"==navigator.platform)&&(t="http://s1.bdstatic.com/r/www/cache/static/plugins/every_cookie_mac_82990d4.js"),setTimeout(function(){$.ajax({url:t,cache:!0,dataType:"script"})},0);var e=navigator&&navigator.userAgent?navigator.userAgent:"",o=document&&document.cookie?document.cookie:"",i=!!(e.match(/(msie [2-8])/i)||e.match(/windows.*safari/i)&&!e.match(/chrome/i)||e.match(/(linux.*firefox)/i)||e.match(/Chrome/29/i)||e.match(/mac os x.*firefox/i)||o.match(/bISSW=1/)||0==UPS.get("isSwitch"));
bds&&bds.comm&&(bds.comm.supportis=!i,bds.comm.isui=!0),window.__restart_confirm_timeout=!0,window.__confirm_timeout=8e3,window.__disable_is_guide=!0,window.__disable_swap_to_empty=!0,window.__switch_add_mask=!0;var s="http://s1.bdstatic.com/r/www/cache/static/global/js/all_async_search_642b9f6.js",n="/script";document.write("<script src='"+s+"'><"+n+">"),bds.comm.newindex&&$(window).on("index_off",function(){$('<div class="c-tips-container" id="c-tips-container"></div>').insertAfter("#wrapper"),window.__sample_dynamic_tab&&$("#s_tab").remove()
}),bds.comm&&bds.comm.ishome&&Cookie.get("H_PS_PSSID")&&(bds.comm.indexSid=Cookie.get("H_PS_PSSID"));var a=$(document).find("#s_tab").find("a");a&&a.length>0&&a.each(function(t,e){e.innerHTML&&e.innerHTML.match(/新闻/)&&(e.innerHTML="资讯",e.href="//www.baidu.com/s?rtt=1&bsst=1&cl=2&tn=news&word=",e.setAttribute("sync",!0))})}();</script>
<script>
if(bds.comm.supportis){
window.__restart_confirm_timeout=true;
window.__confirm_timeout=8000;
window.__disable_is_guide=true;
window.__disable_swap_to_empty=true;
}
initPreload({
'isui':true,
'index_form':"#form",
'index_kw':"#kw",
'result_form':"#form",
'result_kw':"#kw"
});
</script>
<script>
if(navigator.cookieEnabled){
document.cookie="NOJS=;expires=Sat, 01 Jan 2000 00:00:00 GMT";
}
</script>
</body>
</html>
异常处理
In [35]:
from urllib import request,error
try:
respose = request.urlopen('http://cuiqiangcai.com/index.htm')
except error.URLError as e:
print(e.reason)
[Errno 11001] getaddrinfo failed
In [38]:
from urllib import request,error
try:
respose = request.urlopen('http://cuiqiangcai.com/index.htm')
except error.HTTPError as e:
print(e.reason,e.code,e.headers,sep ='n')
except error.URLError as e:
print(e.reason)
else:
print("Request Sucessfully")
[Errno 11001] getaddrinfo failed
In [39]:
import socket
import urllib.request
import urllib.error
try:
respose = urllib.request.urlopen('http://www.baidu.com',timeout=0.01)
except urllib.error.URLError as e:
print(type(e.reason))
if isinstance(e.reason,socket.timeout):
print("timeout")
<class 'socket.timeout'> timeout
URL 解析
urlparse
urllib.parse.urlparse(urlstring,scheme='',allow_fragments=True)
In [40]:
from urllib.parse import urlparse
result = urlparse('https://www.baidu.com/index.html;user?id=5#comment')
print(type(result),result)
<class 'urllib.parse.ParseResult'> ParseResult(scheme='https', netloc='www.baidu.com', path='/index.html', params='user', query='id=5', fragment='comment')
In [42]:
from urllib.parse import urlparse
result = urlparse('www.baidu.com/index.html;user?id=5#comment',scheme='https')
print(result)
ParseResult(scheme='https', netloc='', path='www.baidu.com/index.html', params='user', query='id=5', fragment='comment')
In [43]:
from urllib.parse import urlparse
result = urlparse('http://www.baidu.com/index.html;user?id=5#comment',scheme='https')##解析类型 有的话不起作用
print(result)
ParseResult(scheme='http', netloc='www.baidu.com', path='/index.html', params='user', query='id=5', fragment='comment')
In [44]:
from urllib.parse import urlparse
result = urlparse('https://www.baidu.com/index.html;user?id=5#comment',allow_fragments=False)##清空fragment
print(result)
ParseResult(scheme='https', netloc='www.baidu.com', path='/index.html', params='user', query='id=5#comment', fragment='')
In [45]:
from urllib.parse import urlparse
result = urlparse('https://www.baidu.com/index.html#comment',allow_fragments=False)
print(result)
ParseResult(scheme='https', netloc='www.baidu.com', path='/index.html#comment', params='', query='', fragment='')
urlunparse
In [46]:
from urllib.parse import urlunparse data = ['http','www.baidu.com','index.html','user','a=6','comment'] print(urlunparse(data))
http://www.baidu.com/index.html;user?a=6#comment
urljoin
In [47]:
from urllib.parse import urljoin
print(urljoin('http://www.baidu.com','FAQ.html'))
http://www.baidu.com/FAQ.html
urlencode 字典转换
In [48]:
from urllib.parse import urlencode
params = {
'name':'germey',
'age':'22'
}
base_url = 'http://www.baidu.com?'
url = base_url + urlencode(params)
print(url)
http://www.baidu.com?name=germey&age=22
In [ ]:
最后
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