Consistently use tempfile.tempdir for the db_home directory.
diff --git a/Lib/bsddb/test/test_associate.py b/Lib/bsddb/test/test_associate.py
index ff10cd7..fd70c5d 100644
--- a/Lib/bsddb/test/test_associate.py
+++ b/Lib/bsddb/test/test_associate.py
@@ -151,7 +151,7 @@
 
     def setUp(self):
         self.filename = self.__class__.__name__ + '.db'
-        homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home')
+        homeDir = os.path.join(tempfile.gettempdir(), 'db_home')
         self.homeDir = homeDir
         try:
             os.mkdir(homeDir)
diff --git a/Lib/bsddb/test/test_compare.py b/Lib/bsddb/test/test_compare.py
index 59a45ec..5aa8308 100644
--- a/Lib/bsddb/test/test_compare.py
+++ b/Lib/bsddb/test/test_compare.py
@@ -4,6 +4,7 @@
 
 import sys, os, re
 import test_all
+import tempfile
 from cStringIO import StringIO
 
 import unittest
@@ -51,7 +52,7 @@
 
     def setUp (self):
         self.filename = self.__class__.__name__ + '.db'
-        homeDir = os.path.join (os.path.dirname (sys.argv[0]), 'db_home')
+        homeDir = os.path.join (tempfile.gettempdir(), 'db_home')
         self.homeDir = homeDir
         try:
             os.mkdir (homeDir)
diff --git a/Lib/bsddb/test/test_cursor_pget_bug.py b/Lib/bsddb/test/test_cursor_pget_bug.py
index de47e6d..2f72b11 100644
--- a/Lib/bsddb/test/test_cursor_pget_bug.py
+++ b/Lib/bsddb/test/test_cursor_pget_bug.py
@@ -1,4 +1,5 @@
 import unittest
+import tempfile
 import sys, os, glob
 
 try:
@@ -16,7 +17,7 @@
     db_name = 'test-cursor_pget.db'
 
     def setUp(self):
-        self.homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home')
+        self.homeDir = os.path.join(tempfile.gettempdir(), 'db_home')
         try:
             os.mkdir(self.homeDir)
         except os.error:
diff --git a/Lib/bsddb/test/test_pickle.py b/Lib/bsddb/test/test_pickle.py
index 3916e5c..ef84a40 100644
--- a/Lib/bsddb/test/test_pickle.py
+++ b/Lib/bsddb/test/test_pickle.py
@@ -6,6 +6,7 @@
 except ImportError:
     cPickle = None
 import unittest
+import tempfile
 import glob
 
 try:
@@ -24,7 +25,7 @@
     db_name = 'test-dbobj.db'
 
     def setUp(self):
-        homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home')
+        homeDir = os.path.join(tempfile.gettempdir(), 'db_home')
         self.homeDir = homeDir
         try: os.mkdir(homeDir)
         except os.error: pass
diff --git a/Lib/bsddb/test/test_sequence.py b/Lib/bsddb/test/test_sequence.py
index 979f858..239e8ee 100644
--- a/Lib/bsddb/test/test_sequence.py
+++ b/Lib/bsddb/test/test_sequence.py
@@ -16,7 +16,7 @@
 class DBSequenceTest(unittest.TestCase):
     def setUp(self):
         self.int_32_max = 0x100000000
-        self.homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home')
+        self.homeDir = os.path.join(tempfile.gettempdir(), 'db_home')
         try:
             os.mkdir(self.homeDir)
         except os.error: