Complete collection of python design patterns

The examples in this article describe common design patterns in python. Share it with everyone for your reference, the details are as follows:

# #!/usr/bin/env python
# # -*- coding:utf-8
#
# class HttpBase:
#   def get(self):
#     psss
# class Http1(HttpBase):
#   def get(self):
#     print 'http1'
# class Http2(HttpBase):
#   def get(self):
#     print 'http2'
#
#
# class Base:
#   def __init__(self):
#     self.httpobj = None
#   def http(self):
#     self.httpobj.get()
#   def compute(self):
#     self.http()
#     self.show()
#   #虚函数
#   def show(self):
#     pass
#   def notify(self, k):
#     print 'notify', k
#
#
# #桥接模式，通过A，B 关联不同的http1和http2
# class BaseA(Base):
#   def __init__(self):
#     self.httpobj = Http1()
#   def notify(self, k):
#     print 'A notify', k
#   def show(self):
#     print 'show a'
#
# class BaseB(Base):
#   def __init__(self):
#     self.httpobj = Http2()
#   def notify(self, k):
#     print 'B notify', k
#   def show(self):
#     print 'show b'
#
# #观测者模式
# class Observer:
#   def __init__(self):
#     self.listOB = []
#   def register(self, obj):
#     self.listOB.append(obj)
#   def notify(self):
#     for obj in self.listOB:
#       obj.notify(len(self.listOB))
#
# #适配器模式
# class B1:
#   def http(self):
#     BaseB().http()
# #工厂模式
# class Factory:
#   def CreateA(self):
#     return BaseA()
#   def CreateB(self):
#     return BaseB()
#
#
# #单例模式
# class Logger(object):
#   log = None
#   @staticmethod
#   def new():
#
#     import threading
#     #线程安全
#     mylock = threading.RLock()
#     mylock.acquire()
#     if not Logger.log:
#       Logger.log = Logger()
#     mylock.release()
#
#     return Logger.log
#   def write(self, v):
#     print 'Logger ', v
#
# if __name__ == "__main__":
#   a = Factory().CreateA()
#   b = Factory().CreateB()
#
#   objS = Observer()
#   objS.register(a)
#   objS.register(b)
#
#   a.compute()
#   b.compute()
#   objS.notify()
#
#   b1 = B1()
#   b1.http()
#
#   Logger.new().log.write('v')

Readers who are interested in more Python-related content can check out the special topics on this site: "Summary of Python Image Operation Skills", "Python Data Structure and Algorithm Tutorial", "Python Socket Programming Skills Summary", "Python Function Using Skills Summary" ", "Python String Operation Skills Summary", "Python Introduction and Advanced Classic Tutorial" and "Python File and Directory Operation Skills Summary"

I hope this article will be helpful to everyone in Python programming.