_pickle.PicklingError: Can't pickle <function <lambda> at 0x0000000002EFCBF8>: attribute lookup <lambda> on __main__ failed

[sheldonshen]

python3.4.4

[sheldonshen]

https://docs.python.org/3/library/pickle.html#what-can-be-pickled-and-unpickled,pip install dill to pickle lambda functions,dill github repos https://github.com/uqfoundation/dill,but how to replace the drop in pickle module in distributed multiprocessing environment,aka,do we need to change the pthon library source code,replacing Pickler subclass used by multiprocessing with dill?