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import threading
from zope.component import getGlobalSiteManager
class ThreadLocalManager(threading.local):
def __init__(self, default):
self.stack = []
self.default = default
def push(self, info):
self.stack.append(info)
set = push # b/c
def pop(self):
if self.stack:
return self.stack.pop()
def get(self):
try:
return self.stack[-1]
except IndexError:
return self.default()
def clear(self):
self.stack[:] = []
def defaults():
defaults = {'request':None}
gsm = getGlobalSiteManager()
defaults['registry'] = gsm
return defaults
manager = ThreadLocalManager(defaults)
def setManager(new_manager): # for unit tests
global manager
old_manager = manager
manager = new_manager
return old_manager
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