The code be enabled to pickle the function

pickle.py

from __future__ import print_function
from __future__ import division
from __future__ import absolute_import
from __future__ import unicode_literals

__author__ = "nanofi <nanogenomu@gmail.com>"
__version__ = "1.0.0"
__date__ = "2013/12/25"
__license__ = "MIT License http://opensource.org/licenses/mit-license.php"

try:
  import cPickle as pickle
except:
  import pickle
import copy_reg
import types

def code_unpicker(*args):
  return types.CodeType(*args)
def code_pickler(code):
  pickled = (code.co_argcount, code.co_nlocals, code.co_stacksize, code.co_flags, code.co_code, code.co_consts, code.co_names, code.co_varnames, code.co_filename, code.co_name, code.co_firstlineno, code.co_lnotab, code.co_freevars, code.co_cellvars)
  return code_unpicker, pickled
  
copy_reg.pickle(types.CodeType, code_pickler)

def function_unpicker(code, gbls, name, defaults, closure):
  return types.FunctionType(code, gbls, name, defaults, closure)
def function_pickler(func):
  func_globals = {x:func.func_globals[x] for x in func.func_code.co_names}
  pickled = (func.func_code, func_globals, func.func_name, func.func_defaults, func.func_closure)
  return function_unpickler, pickled

copy_reg.pickle(types.FunctionType, function_pickler)