import uudi
 
#str 转 uuid
uuid.UUID('12345678123456781234567812345678')
uuid.UUID(hex='12345678123456781234567812345678')
uuid.UUID('{12345678-1234-5678-1234-567812345678}')
uuid.UUID('urn:uuid:12345678-1234-5678-1234-567812345678')
#Out：UUID('12345678-1234-5678-1234-567812345678')
 
uuid.UUID(fields=(0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678))
#Out：UUID('12345678-1234-5678-1234-567812345678')
 
#int 转 uuid
uuid.UUID(int=0x12345678123456781234567812345678)
#Out：UUID('12345678-1234-5678-1234-567812345678')
 
#uuid 转 str
str(uuid.uuid4())
#Out：'a0565f88-b20a-4cc1-a6de-11f046bb7100'
type(str(uuid.uuid4()))
#Out：str
python的uuid模块提供UUID类和函数uuid1(), uuid3(), uuid4(), uuid5() 来生成1, 3, 4, 5各个版本的UUID

uuid.uuid1([node[, clock_seq]]) : 主机ID, 序列号, 和时间戳来生成UUID, 可保证全球范围的唯一性
uuid.uuid3(namespace, name) : 基于命名空间和名字的MD5散列值
uuid.uuid4() : 基于随机数
uuid.uuid5(namespace, name) : 基于命名空间和名字的SHA-1散列值，同uuid3

# -*-coding:utf-8 -*-
__author__ = "ZJL"
 
import uuid,time,datetime
 
#uuid4产生32位随机字母加数字
print(str(uuid.uuid4()).replace("-",""))
#uuid3产生基于名字的MD5散列值
print(str(uuid.uuid3(uuid.NAMESPACE_DNS,"username")).replace("-",""))
 
#time转字符串
time_num = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))
print(time_num)
 
#字符串转time
t = time.strptime(time_num, '%Y-%m-%d %H:%M:%S')
y,m,d,H,M,S = t[:6]
print(t)
print(datetime.datetime(y,m,d,H,M,S))
 
#时间的加减
now_time = datetime.datetime.now()
#当前时间加半小时
yes_time = now_time + datetime.timedelta(hours=+0.5)
#比较时间大小
if now_time>yes_time:
  print("ok")
else:
  print("no")
#当前时间减一天
# yes_time = now_time + datetime.timedelta(days=-1)
yes_time_nyr = yes_time.strftime('%Y-%m-%d %H:%M:%S')
print(yes_time_nyr)

import time, datetime
#一个月前
today1 = datetime.datetime.today()
astmonth = datetime.datetime(today1.year, (today1.month - 1), today1.day, today1.hour, today1.minute,today1.second)