python调用api实例讲解

# encoding: utf-8
import requests
import os,re
import urllib.request
 
data={"email":"251910179@qq.com", "password":"ydd4903087"}
session = requests.session()
session.post("http://www.renren.com/PLogin.do",data= data,verify = False)
response =session.get("http://www.renren.com/410043129/profile")
print (response.text)
print (response.url)
print (response.status_code)
print (response.headers)
 
#爬网页图片：
 
requset=requests.post("http://tieba.baidu.com/p/4114581614",verify = False)
 
r=r'src="(http://imgsrc.baidu.com/.*?\.jpg)"'
#r=r'http://imgsrc.baidu.com/.+?\.jpg'
mylist=re.findall(r,str(requset.text))
print (mylist)
j=0
for i in mylist:
    urllib.request.urlretrieve(i, "C:/Users/Administrator/Desktop/img1/"+str(j)+".jpg")
    j+=1

# coding:utf-8
import json
from urlparse import parse_qs
from wsgiref.simple_server import make_server 
# 定义函数，参数是函数的两个参数，都是python本身定义的，默认就行了。
def application(environ, start_response):
    # 定义文件请求的类型和当前请求成功的code
    start_response('200 OK', [('Content-Type', 'text/html')])
    # environ是当前请求的所有数据，包括Header和URL，body，这里只涉及到get
    # 获取当前get请求的所有数据，返回是string类型
    params = parse_qs(environ['QUERY_STRING'])
    # 获取get中key为name的值
    name = params.get('name', [''])[0]
    no = params.get('no', [''])[0]
    # 组成一个数组，数组中只有一个字典
    dic = {'name': name, 'no': no}
    return [json.dumps(dic)] 
if __name__ == "__main__":
    port = 5088
    httpd = make_server("0.0.0.0", port, application)
    print "serving http on port {0}...".format(str(port))
    httpd.serve_forever()