Index: bson-0.5.10/setup.py
===================================================================
--- bson-0.5.10.orig/setup.py
+++ bson-0.5.10/setup.py
@@ -4,7 +4,7 @@
 # Copyright (c) 2015, Ayun Park. All rights reserved.
 # For licensing, see LICENSE file included in the package.
 import sys
-import pkgutil
+import importlib.util
 from setuptools import setup
 from setuptools.command.install import install
 
@@ -13,7 +13,7 @@ class NewInstall(install):
 
     @staticmethod
     def check_pymongo():
-        if pkgutil.find_loader('pymongo'):
+        if importlib.util.find_spec('pymongo'):
             return True
         return False