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#
# This module shows how to use arbitrary callables with a subclass of
# `BaseManager`.
#
from multiprocess import freeze_support as freezeSupport
from multiprocess.managers import BaseManager, IteratorProxy as BaseProxy
##
class Foo(object):
def f(self):
print('you called Foo.f()')
def g(self):
print('you called Foo.g()')
def _h(self):
print('you called Foo._h()')
# A simple generator function
def baz():
for i in range(10):
yield i*i
# Proxy type for generator objects
class GeneratorProxy(BaseProxy):
def __iter__(self):
return self
def __next__(self):
return self._callmethod('__next__')
##
class MyManager(BaseManager): pass
# register the Foo class; make all public methods accessible via proxy
MyManager.register('Foo1', Foo)
# register the Foo class; make only `g()` and `_h()` accessible via proxy
MyManager.register('Foo2', Foo, exposed=('g', '_h'))
# register the generator function baz; use `GeneratorProxy` to make proxies
MyManager.register('baz', baz, proxytype=GeneratorProxy)
##
def test():
manager = MyManager()
manager.start()
print('-' * 20)
f1 = manager.Foo1()
f1.f()
f1.g()
assert not hasattr(f1, '_h')
print('-' * 20)
f2 = manager.Foo2()
f2.g()
f2._h()
assert not hasattr(f2, 'f')
print('-' * 20)
it = manager.baz()
for i in it:
print('<%d>' % i, end=' ')
print()
##
if __name__ == '__main__':
freezeSupport()
test()
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