模块

from collections import namedtuple
Point = namedtuple('point',['x','y'])
p = Point(1,2)
print(p.x)
print(p.y)
print(p)

 

import queue
q = queue.Queue()
q.put(10)
q.put(5)
q.put(2)
print(q.get())
print(q.get())
print(q.get())

print(q.qsize())

 

from collections import OrderedDict
od = OrderedDict([('a',1),('b',2)])
print(od['a'])
for k in od:
    print(k)