Index: Lib/bsddb/test/test_misc.py
===================================================================
--- Lib/bsddb/test/test_misc.py	(revision 50594)
+++ Lib/bsddb/test/test_misc.py	(working copy)
@@ -4,6 +4,7 @@
 import os
 import sys
 import unittest
+import tempfile
 
 try:
     # For Pythons w/distutils pybsddb
@@ -17,7 +18,7 @@
 class MiscTestCase(unittest.TestCase):
     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)
Index: Lib/bsddb/test/test_dbshelve.py
===================================================================
--- Lib/bsddb/test/test_dbshelve.py	(revision 50594)
+++ Lib/bsddb/test/test_dbshelve.py	(working copy)
@@ -231,7 +231,7 @@
 class BasicEnvShelveTestCase(DBShelveTestCase):
     def do_open(self):
         self.homeDir = homeDir = os.path.join(
-            os.path.dirname(sys.argv[0]), 'db_home')
+            tempfile.gettempdir(), 'db_home')
         try: os.mkdir(homeDir)
         except os.error: pass
         self.env = db.DBEnv()
Index: Lib/bsddb/test/test_join.py
===================================================================
--- Lib/bsddb/test/test_join.py	(revision 50594)
+++ Lib/bsddb/test/test_join.py	(working copy)
@@ -49,7 +49,7 @@
 
     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)
         except os.error: pass
Index: Lib/bsddb/test/test_basics.py
===================================================================
--- Lib/bsddb/test/test_basics.py	(revision 50594)
+++ Lib/bsddb/test/test_basics.py	(working copy)
@@ -54,7 +54,7 @@
 
     def setUp(self):
         if self.useEnv:
-            homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home')
+            homeDir = os.path.join(tempfile.gettempdir(), 'db_home')
             self.homeDir = homeDir
             try:
                 shutil.rmtree(homeDir)
Index: Lib/bsddb/test/test_recno.py
===================================================================
--- Lib/bsddb/test/test_recno.py	(revision 50594)
+++ Lib/bsddb/test/test_recno.py	(working copy)
@@ -203,10 +203,10 @@
         just a line in the file, but you can set a different record delimiter
         if needed.
         """
-        source = os.path.join(os.path.dirname(sys.argv[0]),
-                              'db_home/test_recno.txt')
-        if not os.path.isdir('db_home'):
-            os.mkdir('db_home')
+        homeDir = os.path.join(tempfile.gettempdir(), 'db_home')
+        source = os.path.join(homeDir, 'test_recno.txt')
+        if not os.path.isdir(homeDir):
+            os.mkdir(homeDir)
         f = open(source, 'w') # create the file
         f.close()
 
Index: Lib/bsddb/test/test_thread.py
===================================================================
--- Lib/bsddb/test/test_thread.py	(revision 50594)
+++ Lib/bsddb/test/test_thread.py	(working copy)
@@ -53,7 +53,7 @@
         if verbose:
             dbutils._deadlock_VerboseFile = sys.stdout
 
-        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)
Index: Lib/bsddb/test/test_associate.py
===================================================================
--- Lib/bsddb/test/test_associate.py	(revision 50594)
+++ Lib/bsddb/test/test_associate.py	(working copy)
@@ -91,7 +91,7 @@
 class AssociateErrorTestCase(unittest.TestCase):
     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)
Index: Lib/bsddb/test/test_env_close.py
===================================================================
--- Lib/bsddb/test/test_env_close.py	(revision 50594)
+++ Lib/bsddb/test/test_env_close.py	(working copy)
@@ -33,7 +33,7 @@
 
 class DBEnvClosedEarlyCrash(unittest.TestCase):
     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: pass
         tempfile.tempdir = self.homeDir
Index: Lib/bsddb/test/test_dbtables.py
===================================================================
--- Lib/bsddb/test/test_dbtables.py	(revision 50594)
+++ Lib/bsddb/test/test_dbtables.py	(working copy)
@@ -26,6 +26,7 @@
     pickle = cPickle
 except ImportError:
     import pickle
+import tempfile
 
 import unittest
 from test_all import verbose
@@ -46,7 +47,7 @@
     db_name = 'test-table.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
Index: Lib/bsddb/test/test_dbobj.py
===================================================================
--- Lib/bsddb/test/test_dbobj.py	(revision 50594)
+++ Lib/bsddb/test/test_dbobj.py	(working copy)
@@ -2,6 +2,7 @@
 import sys, os, string
 import unittest
 import glob
+import tempfile
 
 try:
     # For Pythons w/distutils pybsddb
@@ -19,7 +20,7 @@
     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
Index: Lib/bsddb/test/test_lock.py
===================================================================
--- Lib/bsddb/test/test_lock.py	(revision 50594)
+++ Lib/bsddb/test/test_lock.py	(working copy)
@@ -30,7 +30,7 @@
 class LockingTestCase(unittest.TestCase):
 
     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
Index: Lib/test/test_tarfile.py
===================================================================
--- Lib/test/test_tarfile.py	(revision 50594)
+++ Lib/test/test_tarfile.py	(working copy)
@@ -31,7 +31,11 @@
 def tarname(comp=""):
     if not comp:
         return testtar
-    return os.path.join(tempdir, "%s%s%s" % (testtar, os.extsep, comp))
+    # In certain cases, the testtar variable is an absolute path,
+    # other times it's a relative path.  When you do os.path.join(A,
+    # B) where B is an absolute path, it throws away A and just
+    # returns B.  So we use the "testtar" literal instead of testtar.
+    return os.path.join(dirname(), "testtar.tar%s%s" % (os.extsep, comp))
 
 def dirname():
     if not os.path.exists(tempdir):