import threading
try:
from greenlet import getcurrent as get_ident # 协程
except ImportError:
try:
from thread import get_ident
except ImportError:
from _thread import get_ident # 线程
class Local(object):
def __init__(self):
object.__setattr__(self, '__storage__', {})
object.__setattr__(self, '__ident_func__', get_ident)
def __getattr__(self, name):
try:
return self.__storage__[self.__ident_func__()][name]
except KeyError:
raise AttributeError(name)
def __setattr__(self, name, value):
ident = self.__ident_func__()
storage = self.__storage__
try:
storage[ident][name] = value
except KeyError:
storage[ident] = {name: value}
def __delattr__(self, name):
try:
del self.__storage__[self.__ident_func__()][name]
except KeyError:
raise AttributeError(name)
local_values = Local()
def task(num):
local_values.name = num
import time
time.sleep(1)
print(local_values.name, threading.current_thread().name)
for i in range(20):
th = threading.Thread(target=task, args=(i,),name='线程%s' % i)
th.start()
thread local变量
原文：http://blog.51cto.com/12765315/2096304
