Python脚本实现自动发带图的微博
要自动发微博最简单的办法无非是调用新浪微博的API（因为只是简单的发微博，就没必要用它的SDK了）。参考开发文档http://open.weibo.com/wiki/API 进行代码编写
创建应用
要使用微博的API，需先要有个应用。随便是个应用就行，可以到这里注册一个站内应用应用注册。注册应用的主要目的是要获得MY_APPKEY 和MY_ACCESS_TOKEN,如图所示
获取access_token
API的调用需要登录授权获得access_token。参考
首先，调用https://api.weibo.com/oauth2/authorize接口，获得code。
该接口有三个必须的参数：
•client_id：申请应用时分配的AppKey。
•redirect_url:就是创建应用中设置的回调地址
•response_type：响应类型，可设置为code
具体做法，就是在浏览器打开https://api.weibo.com/oauth2/authorize?client_id=123050457758183&redirect_uri=http://www.example.com/response&response_type=code。该方法会转到授权页面，授权之后会转到http://www.example.com/response&code=CODE，记录下该url中的CODE。
接着，调用https://api.weibo.com/oauth2/access_token接口，获得access_token。
该接口有如下必须的参数：
•client_id：申请应用时分配的AppKey。
•client_secret：申请应用时分配的AppSecret。
•grant_type：请求的类型，填写authorization_code
•code：调用authorize获得的code值。
•redirect_uri： 就是创建应用中设置的回调地址
具体做法就是构建一个POST请求，再在返回的数据中找到access_token，保存下来。具体的Python代码：
import requests
url_get_token = "https://api.weibo.com/oauth2/access_token"
#构建POST参数
playload = {
"client_id":"填入你的",
"client_secret":"填入你的",
"grant_type":"authorization_code",
"code":"上面获得的CODE",
"redirect_uri":"你的回调用地址"
}
#POST请求
r = requests.post(url_get_token,data=playload)
#输出响应信息
print r.text 如果正常的话，会返回下面这样的json数据：
{"access_token":"我们要记下的","remind_in":"157679999","expires_in":157679999,"uid":"1739207845"}根据返回的数据，access_token的值就是我们要的。其中remind_in的值是access_token的有效期，单位为秒，我们可以看到，这个时间有3、4年之久，足够我们用了。
发表纯文字微博
调用接口https://api.weibo.com/2/statuses/update.json发表文字微博，其参数如下
其中必须的：
•access_token： 就是我们上一步获得的access_token
•status：要发布的微博文本内容，必须做URLencode，内容不超过140个汉字
具体代码:
#发表文字微博的接口
url_post_a_text = "https://api.weibo.com/2/statuses/update.json"
#构建POST参数
playload = {
"access_token":"填入你的",
"status":"This is a text test@TaceyWong"
}
#POST请求，发表文字微博
r = requests.post(url_post_a_text,data = playload) 如果正常，会有向下面这样的结果
发表带图片的微博
调用接口http://open.weibo.com/wiki/2/statuses/upload发表图片微博，其参数如下：
其中必须的参数：
•access_token： 就是我们上一步获得的access_token
•status：要发布的微博文本内容，必须做URLencode，内容不超过140个汉字
•pic：要发表的图片，采用multipart/form-data编码方式
具体的代码：
#发表图文微博的接口
url_post_pic = "https://upload.api.weibo.com/2/statuses/upload.json"
#构建文本类POST参数
playload={
"access_token":"2.0086XhtBIQLH7Ed67706b6c8TQ8XdE",
"status":"Test:Post a text with a pic & AT someone@丸子覠"
}
#构建二进制multipart/form-data编码的参数
files={
"pic":open("logo.png","rb")
}
#POST请求，发表微博
r = requests.post(url_post_pic,data=playload,files = files)如果正常，结果会像下面这样：
注：requests的具体用法请参考[requests文档](http://docs.python-requests.org/en/master/)
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