support for Loggers

cloudpickle/cloudpickle.py

@@ -49,6 +49,7 @@
 import itertools
 import opcode
 import operator
+import logging
 import pickle
 import struct
 import sys
@@ -790,6 +791,10 @@ def save_not_implemented(self, obj):
     dispatch[type(Ellipsis)] = save_ellipsis
     dispatch[type(NotImplemented)] = save_not_implemented
 
+    def save_logger(self, obj):
+        self.save_reduce(logging.getLogger, (obj.name,), obj=obj)
+    dispatch[logging.Logger] = save_logger
+
     """Special functions for Add-on libraries"""
     def inject_addons(self):
         """Plug in system. Register additional pickling functions if modules already loaded"""

tests/cloudpickle_test.py

@@ -1,6 +1,7 @@
 from __future__ import division
 import imp
 import unittest
+import logging
 import pytest
 import pickle
 import sys
@@ -507,6 +508,12 @@ def test_cell_manipulation(self):
             msg='cell contents not set correctly',
         )
 
+    def test_logger(self):
+        log1 = logging.getLogger('name')
+
+        log2 = pickle_depickle(log1)
+        self.assertEqual(log1.name, log2.name)
+
 
 if __name__ == '__main__':
     unittest.main()