第三方模块安装

1安装

软件管理工具

安装pip3

依赖setuptools

pip3 install requests

2源码安装

下载代码，安装

https://codeload.github.com/requests/requests/legacy.tar.gz/master

先下载然后解太进入目录中，执行

python setup.py install

1 import requests
2 response = requests.get("http://www.weather.com.cn/adat/sk/101010500.html")
3 response.encoding = "utf-8"
4 result =response.text
5 print(result)

检查QQ是否在线

 1 import requests
 2 #发送一个requests http请求，或者XML格式内容
 3 r = requests.get("http://www.webxml.com.cn//webservices/qqOnlineWebService.asmx/qqCheckOnline?qqCode=45678966456")
 4 result = r.text
 5 from xml.etree import ElementTree as ET
 6 #解析XML格式内容
 7 #XML接收一个参数：字符串，格式化为特殊的对像
 8 node = ET.XML(result)
 9 #获取内容
10 if node.text == "Y":
11     print("在线")
12 else:
13     print("离线")

火车时刻列表

1 import requests
2 r = requests.get("http://ws.webxml.com.cn/WebServices/TrainTimeWebService.asmx/getDetailInfoByTrainCode?TrainCode=T96&UserID=")
3 result = r.text
4 # print(result)
5 from xml.etree import ElementTree as ET
6 root =  ET.XML(result)
7 for node in root.iter("TrainDetailInfo"):
8     print(node.find('TrainStation').text,node.find('ArriveTime').text)

XML操作

初始化：

 1 #!/usr/bin/env python3
 2 from xml.etree import ElementTree as ET
 3 from xml.dom import minidom
 4 def prettify(elem):
 5 #将节点专成字符串，并添加缩进
 6     rough_string =ET.tostring(elem,'utf-8')
 7     reparsed = minidom.parseString(rough_string)
 8     return reparsed.toprettyxml(indent='	')
 9 #创建 根节点
10 root = ET.Element("famliy")
11 #创建子节点,大儿子和小儿子
12 son1 = ET.Element('son',{'name':'儿1'})
13 son2 = ET.Element('son',{'name':'儿2'})
14 #大儿子中创建 两个孙子
15 grandson1 = ET.Element('grandson',{'name':'儿11'})
16 grandson2 = ET.Element('grandson',{'name':'儿12'})
17 son1.append(grandson1)
18 son1.append(grandson2)
19 
20 #把儿子添加到根节点
21 root.append(son1)
22 root.append(son2)
23 
24 raw_str = prettify(root)
25 f = open('family.xml','w',encoding='utf-8')
26 f.write(raw_str)
27 f.close()

增加

 1 #!/usr/bin/env python3
 2 from xml.etree import ElementTree as ET
 3 #直接解析xml文件
 4 tree = ET.parse('first.xml')
 5 #获取xml文件的根节点，element类型
 6 root = tree.getroot()
 7 # print(root.tag)
 8 # print(root.attrib)
 9 # print(root.text)
10 #创建 根节点element类型
11 # son = root.makeelement('tt',{"kk":"vv"})
12 # #添加儿子节点
13 # root.append(son)
14 # s = son.makeelement("tt",{"kk":"123456"})
15 #对像==》类创建
16 son = ET.Element("aa",{"kk":"vv"})
17 root.append(son)
18 s = ET.Element("aa",{"kk":"aa1234"})
19 son.append(s)
20 
21 
22 tree.write("out.xml")

修改删除

tag, find,iter,set,get,items

 1 from xml.etree import ElementTree as ET
 2 root = ET.XML(open('first.xml','r',encoding='utf-8').read())
 3 print(root.tag)
 4 for node in root:
 5     print(node,type(node))
 6     print(node.tag,node.attrib,node.find('year').text)
 7 tree = ET.parse('first.xml')
 8 root = tree.getroot()
 9 print(root.tag)
10 
11 for node in root.iter('year'):
12     new_year = int(node.text)+1#修改text内的容
13     node.text = str(new_year)
14     # node.set('name','alex')
15     # node.set('age','19')
16     del node.attrib['name']#删除name的内容
17 tree.write('first.xml')

configparser主要用一类配置文件的修写创建如
本质就是利用open来操作
[section1]
 k1 = v1
 k1:v1
[section2]
 k2 = v2

 1 #!/usr/bin/env python3
 2 import configparser
 3 conf = configparser.ConfigParser()
 4 conf.read("ini",encoding='utf-8')
 5 
 6 # result = conf.sections()
 7 #获取节点信息
 8 # print(result)
 9 # ret = conf.get('wang','age')
10 #获取节点信息内容age的值
11 # print(ret)
12 #
13 # ret1 = conf.items('wang')
14 # print(ret1)
15 #
16 # has_sec = conf.has_section('wang')
17 # print(has_sec)
18 #添加节点
19 conf.add_section("robert1")
20 
21 #节点的值
22 conf.set('robert1','age','15')
23 #节点移除
24 # conf.remove_section('robert')
25 #节点中值移去
26 # conf.remove_option('robert','age')
27 #修改设置
28 conf.set('robert','age','45')
29 conf.write(open('ini_o1','w',encoding='utf-8'))