Fixed two bugs in the bsddb tests. One was reported as #1956

Lib/bsddb/test/test_compare.py

@@ -6,7 +6,7 @@ import shutil
 import sys, os, re
 from io import StringIO
 import tempfile
-import test_all
+from . import test_all
 
 import unittest
 try:

Lib/bsddb/test/test_thread.py

@@ -51,7 +51,7 @@ class BaseThreadedTestCase(unittest.TestCase):
         self.homeDir = homeDir
         try:
             os.mkdir(homeDir)
-        except OSError, e:
+        except OSError as e:
             if e.errno != errno.EEXIST: raise
         self.env = db.DBEnv()
         self.setEnvOpts()
@@ -68,7 +68,7 @@ class BaseThreadedTestCase(unittest.TestCase):
         self.env.close()
         try:
             shutil.rmtree(self.homeDir)
-        except OSError, e:
+        except OSError as e:
             if e.errno != errno.EEXIST: raise
 
     def setEnvOpts(self):