我正在尝试设置一个单元测试工具，它启动一个使用python多处理并发运行的函数的几个实例。
我的主线程看起来像这样。函数new_instance（）接受get_landing_pages（）函数返回的对象。
如果我将一个简单的字符串作为参数传递，新进程就可以了。但是当我尝试传递lp对象时，我得到了很多错误。
if __name__ == '__main__':
lp = get_landing_pages()
p1 = Process(target=new_instance,args=(lp,))
p1.start()
p2 = Process(target=new_instance,args=(lp,))
p2.start()
p1.join()
p2.join()
部分错误：
Traceback (most recent call last):
File "C:\Users\cory_weiner\Desktop\dashboardErrorTool 6-30-2016.py", line 118, in <module>
p1.start()
File "C:\Python27\lib\multiprocessing\process.py", line 130, in start
self._popen = Popen(self)
File "C:\Python27\lib\multiprocessing\forking.py", line 277, in __init__
dump(process_obj, to_child, HIGHEST_PROTOCOL)
File "C:\Python27\lib\multiprocessing\forking.py", line 199, in dump
ForkingPickler(file, protocol).dump(obj)
File "C:\Python27\lib\pickle.py", line 224, in dump
self.save(obj)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 554, in save_tuple
save(element)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 606, in save_list
self._batch_appends(iter(obj))
File "C:\Python27\lib\pickle.py", line 639, in _batch_appends
save(x)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce
save(state)
File "C:\Python27\lib\pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "C:\Python27\lib\pickle.py", line 655, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 687, in _batch_setitems
save(v)
File "C:\Python27\lib\pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 425, in save_reduce