shelve,xml,configparser,hashlib

#shelve模块

import shelve
d=shelve.open('shelve_test')

t = Tes(123)
t2 = Tes(123334)

name = ["alex", "rain", "test"]
d["test"] = name # 持久化列表
d["t1"] = t # 持久化类
d["t2"] = t2

d.close()
#写
import shelve,datetime
d = shelve.open('shelve_test')
info = {'age':22,'job':'it'}
name = ['alex','rain','test']
d['name']=name
d['info']=info
d['date']=datetime.datetime.now()
d.close()

#读
import shelve
d = shelve.open('shelve_test')
print(d.get('name'))
print(d.get('info'))
print(d.get('date'))

#xml模块

import xml.etree.ElementTree as ET
tree = ET.parse("xmltes.xml")
root=tree.getroot()
#print(root) #文档内存地址
#print(root.tag) #根的名标签名

#遍历 xml文档
for child in root:
    print(child.tag,child.attrib)
    for i in child:
        print(i.tag,i.text,i.attrib #attrib属性 text内容


#只遍历year节点
for node in root.iter('year'):
    print(node.tag,node.text)

#修改xml文档
for node in root.iter('year'):
    new_year = int(node.text) + 1
    node.text=str(new_year)
    node.set("updated","yes") #修改属性

tree.write("xmltes.xml") #写回原文件

#删除node
for country in root.findall('country'):
    rank=int(country.find('rank').text)
    if rank > 50:
        root.remove(country)
tree.write('output.xml')

#创建xml
new_xml=ET.Element("personinfolist")
personinfo=ET.SubElement(new_xml,'personinfo',attrib={"enrolled":"yes"})
name=ET.SubElement(personinfo,"name")
name.text="alex"
age=ET.SubElement(personinfo,'age',attrib={"checked":"no"})
sex=ET.SubElement(personinfo,"sex")
age.text="88"
personinfo2=ET.SubElement(new_xml,'personinfo',attrib={"enrolled":"no"})
name=ET.SubElement(personinfo2,"name")
name.text="haha"
age=ET.SubElement(personinfo2,"age")
age.text='19'

et=ET.ElementTree(new_xml) #生成文档对象
et.write("tes.xml",encoding="utf-8",xml_declaration=True)
ET.dump(new_xml)#打印生成的格式

Configparser模块

#用于生成和修改常见配置文档
import configparser
#生成配置文件
config=configparser.ConfigParser()
config["DEFAULT"]={'ServerAliveInterval': '45',
                      'Compression': 'yes',
                     'CompressionLevel': '9'}

config['bitbucket.org'] = {}
config['bitbucket.org']['User'] = 'hg'
config['topsecret.server.com'] = {}
topsecret = config['topsecret.server.com']
topsecret['Host Port'] = '50022'     # mutates the parser
topsecret['ForwardX11'] = 'no' # same here
config['DEFAULT']['ForwardX11'] = 'yes'
with open('example','w') as configfile:
    config.write(configfile)
#读配置文件
conf=configparser.ConfigParser()
conf.read("example")
print(conf.defaults())
print(conf['bitbucket.org']['user'])    #section部分

#删除section
sec = conf.remove_section('bitbucket.org') #section部分删除bitbucket.org部分
conf.write(open('example.cfg','w')) #写入可修改原文件

#判断section部分
print(conf.has_section("topsecret.server.com")) #存在则为true

#添加section
sec2=conf.add_section("HOST")
conf.write(open('example.cfg','w'))

#修改section下的key value
conf.set('HOST','hostname_ip','192.168.0.1') #conf.set(section,'key','value')
conf.write(open('example.cfg','w'))

#hashlib模块

import hashlib
#用于加密相关的操作
m = hashlib.md5()
m.update(b'hello') #update叠加
print(m.hexdigest()) #十六进制
m.update(b"It's me")
print(m.hexdigest())
m.update(b"It's been a long time since last time we ...")
print(m.hexdigest())

print('----------------------------------------')

m2=hashlib.md5()
m2.update(b"helloIt's me") #拼起来
print(m2.hexdigest())

s2=hashlib.sha256()
s2.update(b"helloIt's me")
print(s2.hexdigest())

import hmac
#对我们创建 key 和内容再进行处理然后再加密用于消息加密
h = hmac.new('天王盖地虎'.encode(encoding="utf-8"),'宝塔镇河妖'.encode(encoding='utf-8'))
print(h.digest()) #十进制
print(h.hexdigest())

扫描二维码关注公众号，回复： 4289574 查看本文章

shelve,xml,configparser,hashlib

猜你喜欢