Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36', } response=urllib.request.Request...headers) webPage=urllib.request.urlopen(response) print(webPage.read().decode('utf-8')) 使用Request类返回的又是一个urllib.request.Request...补充知识:python中urllib.request.Request()与urllib.request.urlopen()区别 蟒蛇中urllib.request.Request()与urllib.request.urlopen...()的区别: 相对于urllib.request.urlopen()来说urllib.request.Request是进一步的包装请求,下面是请求类的源码示例: class Request:...bytes类型的可迭代对象,不能是字符串 form_data = urllib.parse.urlencode(form_data).encode() # 构造请求对象Request req = urllib.request.Request
之前以为是Python编码的问题,不断去尝试不同的编码去encode与decode,可以问题总是解决不了,没有办法继续查阅资料,最后发现其实解决方法特别简单。...urllib rooturl = "https://baike.baidu.com/item/" item = "爬虫" url = rooturl+item print(url) request = urllib.request.Request...原来是Python3的urllib模块urllib.request.Request()方法中无法处理带有中文字符的链接,需要通过urllib.parse.quote()对中文字符串转换一下添加代码即可:...baike.baidu.com/item/" item = "爬虫" item = urllib.parse.quote(item) url = rooturl+item print(url) request = urllib.request.Request
cjar)) urllib.request.install_opener(opener) loginurl="https://kyfw.12306.cn/otn/login/init#" req0 = urllib.request.Request...login/userLogin" loginpostdata2 =urllib.parse.urlencode({ "_json_att":"", }).encode('utf-8') req2_2 = urllib.request.Request..._4).read().decode("utf-8","ignore") centerurl="https://kyfw.12306.cn/otn/index/initMy12306" req3 = urllib.request.Request...while True: try: initurl="https://kyfw.12306.cn/otn/leftTicket/init" reqinit=urllib.request.Request...checkdata =urllib.parse.urlencode({ "_json_att":"" }).encode('utf-8') req5 = urllib.request.Request
见如下代码: 正确的代码如下: def askURL(url): request = urllib.request.Request(url) try:...defined 该导入的模块没导入,在调用时也会出现这样的问题: 以下代码使用了urllib模块:如果没有import urllib那肯定出错 def askURL(url): request = urllib.request.Request...import imp imp.reload(sys) 12 对于高于 Python 3.4版本的: import importlib importlib.reload(sys) 12 注意: Python 3 与...模块库里面已经没有 setdefaultencoding() 这个函数了 情况七:全局变量的问题 问题: 第一函数中使用了html变量: def askURL(url): request = urllib.request.Request...def askURL(url): global html # #将html变成全局变量 request = urllib.request.Request(url)
浏览器登录后得到的cookie,也就是刚才复制的字符串 # cookie_str = 'PHPSESSID=go07n3aart4qoflrfe0m3nod42' # #构造登录请求 # request = urllib.request.Request...WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36'} # #构造登录请求 # req = urllib.request.Request...WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36'} # #构造登录请求 # req = urllib.request.Request...opener.open(req) # #保存cookie到文件 # cookie.save(ignore_discard=True, ignore_expires=True) # #构造访问请求 # req = urllib.request.Request...6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36'} #构造登录请求 req = urllib.request.Request
f.write(data) f.close() urlopen返回对象提供方法: read() , readline() ,readlines() , fileno() , close() :这些方法的使用方式与文件对象完全一样...2、urllib.request.Request urlopen()方法可以实现最基本请求的发起,但这几个简单的参数并不足以 构建一个完整的请求,如果请求中需要加入headers(请求头)等信息模拟浏览器...#后两个参数与第三方cookie有关。...)会失败,必须要使用gzip.decompress(‘utf-8′,’ignore’)才能打开,猜测应该是header的问题,换一个有时会好 本文主要讲解了python爬虫模块urllib详细使用方法与实例全解...,更多关于python爬虫模块urllib详细使用方法与实例请查看下面的相关链接
1. get 请求方式与 post 请求方式 get 请求 从服务器获取数据 没有对服务器产生影响 通常都是 get 请求、 请求参数在 url 地址上显示,时间戳就是后面的各种参数 post 请求...urllib.request.urlopen("网址") 向网站发起一个请求并获取响应 字节流 = response.read() 字符串 = response.read().decode("utf-8") urllib.request.Request...AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36' } 1 创建req请求对象并构建headers req = urllib.request.Request...(url,headers=headers) print(req) # 2 获取响应数据 response
# url 作为Request()方法的参数,构造并返回一个Request对象 request = urllib.request.Request...6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36" } request = urllib.request.Request...# Request对象作为urlopen()方法的参数,发送给服务器并接收响应 html = response.read() print(html) 四:Request.get_header()与Request.add_header...6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36" } request = urllib.request.Request...Mac OS... " ] user_agent = random.choice(user_agent_list) #随机抽取一个User-Agent值 request = urllib.request.Request
Chrome/63.0.3239.132 Safari/537.36", "cookie": "xxxxxxxxx(登录过得用户cookie)" } req = urllib.request.Request...终端输出cookie对象 import urllib.request import http.cookiejar url = "http://www.hao123.com" req = urllib.request.Request.../>]> 将Cookie保存到文件中: import urllib.request import http.cookiejar url = "http://www.hao123.com" req = urllib.request.Request...cookie_filename, ignore_discard=True, ignore_expires=True) print(cookie) url = "http://www.hao123.com" req = urllib.request.Request
opener.addheaders = [headers] data = opener.open(url).read() print(data.decode('utf-8')) 使用add_header()添加报头 我们还可以使用urllib.request.Request...()下的add_header()实现浏览器的模拟 import urllib.request url = 'https://www.baidu.com/' req = urllib.request.Request
浏览器内核、浏览器渲染引擎、浏览器语言、浏览器插件等 语法:request = urllib.request.Request() 示例: import urllib.request url = 'https...10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36' } request = urllib.request.Request...10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36' } request = urllib.request.Request...请求的参数必须要进行编码 data = urllib.parse.urlencode(data).encode('utf-8') # post请求的参数要放在请求对象定制的参数中 request = urllib.request.Request...请求的时候必须带上cookie才可以请求 13.Handler处理器 urllib.request.urlopen(url) 不能定制请求头 urllib.request.Request(url
前言 爬虫的动态处理方法(我用较为简单的一些网址举例 比如豆瓣的热门电影) ---- 一、动态爬虫 动态爬虫与静态爬虫的最大区别就是源代码与网页内容不同,动态爬虫可以通过抓包(就是直接利用浏览器的F12...10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.82 Safari/537.36' } requests=urllib.request.Request...10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.82 Safari/537.36' } requests=urllib.request.Request
urllib.request.build_opener(handler) #response = opener.open('http://flights.ctrip.com/') request = urllib.request.Request...urllib.request.HTTPCookieProcessor(cookie) opener = urllib.request.build_opener(handler) request = urllib.request.Request
AppleWebKit/534.50 ' \ '(KHTML, like Gecko) Version/5.1 Safari/534.50'req = urllib.request.Request...的方法若要使用动态追加的方法,必须实例化Request这个类import urllib.requestimport urllib.parseurl = 'http://httpbin.org/post'req = urllib.request.Request...534.50' data = {}data['name'] = 'us'data = urllib.parse.urlencode(data).encode('utf-8')req = urllib.request.Request
urllib.request.HTTPCookieProcessor(cookie_jar) opener = urllib.request.build_opener(handler) request = urllib.request.Request...ignore_expires=True) except urllib.error.URLError as e: print(e.code, ':', e.reason) #测试获取数据 get_request = urllib.request.Request
markdown": { "content": "hello world", } } data = json.dumps(data).encode("utf-8") req_attr = urllib.request.Request...content": "hello world", } } data = json.dumps(data).encode("utf-8") req_attr = urllib.request.Request...content": event['body'], } } data = json.dumps(data).encode("utf-8") req_attr = urllib.request.Request...% (url)) else: urllib.request.urlopen(urllib.request.Request(os.environ.get('url'), ("您的网站...总结 通过 Serverless 架构,我们可以快速的为以后的产品增加一些新的功能,赋予新的生机,本文仅仅是抛砖引玉,通过企业微信机器人与 Serverless 架构的结合,若干代码实现提醒吃饭/喝水功能
KHTML, like Gecko) Chrome/51.0.2704.63 Safari/537.36" headers = {'User-Agent':user_agent} req = urllib.request.Request...KHTML, like Gecko) Chrome/51.0.2704.63 Safari/537.36" headers = {'User-Agent':user_agent} req = urllib.request.Request...KHTML, like Gecko) Chrome/51.0.2704.63 Safari/537.36" headers = {'User-Agent':user_agent} req = urllib.request.Request
user_agent = {"User-Agent": "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT6.1; Trident/5.0)"} request = urllib.request.Request...创建支持处理 HTTP 请求的 opener 对象 opener = urllib.request.build_opener(http_handler) # 构建 Request 请求 request = urllib.request.Request...urllib.request.build_opener(httpproxy_handler) else: opener = urllib.request.build_opener(nullproxy_handler) request = urllib.request.Request
(resp) print(resp.text) HTTP 是基于请求和响应的工作模式,urllib.request 提供了一个 Request 对象来代表请求,因此上面的代码也可以这么写 req = urllib.request.Request...') with urllib.request.urlopen(req) as response: print(response.read()) Request对象可以增加header信息 req = urllib.request.Request...Python' } data = urllib.parse.urlencode(values) data = data.encode('ascii') # data should be bytes req = urllib.request.Request
json'} print(data) print(values) print(json.dumps(data)) print(json.dumps(data).encode()) request = urllib.request.Request...urllib.request.urlopen(request) 我们使用的是python3,post的是json格式的请求,所以: import urllib.request import json headers是json的标记 因为 urllib.request.Request
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