Allow skipping of regression tests not supported on windows. This reduces noise in the regression test suite for py3k on Windows.

Lib/test/regrtest.py

@@ -892,6 +892,7 @@ _expectations = {
         test_fork1
         test_epoll
         test_dbm_gnu
+        test_dbm_ndbm
         test_grp
         test_ioctl
         test_largefile

Lib/test/test_dbm_gnu.py

@@ -1,4 +1,5 @@
-import dbm.gnu as gdbm
+from test import support
+gdbm = support.import_module("dbm.gnu") #skip if not supported
 import unittest
 import os
 from test.support import verbose, TESTFN, run_unittest, unlink

Lib/test/test_dbm_ndbm.py

@@ -1,4 +1,5 @@
 from test import support
+support.import_module("dbm.ndbm") #skip if not supported
 import unittest
 import os
 import random

Lib/test/test_posix.py

@@ -1,6 +1,7 @@
 "Test posix functions"
 
 from test import support
+posix = support.import_module('posix') #skip if not supported
 
 import time
 import os
@@ -9,8 +10,6 @@ import shutil
 import unittest
 import warnings
 
-posix = support.import_module('posix')
-
 warnings.filterwarnings('ignore', '.* potential security risk .*',
                         RuntimeWarning)
 

Lib/test/test_pty.py

@@ -1,6 +1,7 @@
+from test import support
+pty = support.import_module("pty") #skip if not supported
 import errno
 import fcntl
-import pty
 import os
 import sys
 import signal

Lib/test/test_syslog.py

@@ -1,7 +1,7 @@
 
-import syslog
-import unittest
 from test import support
+syslog = support.import_module("syslog") #skip if not supported
+import unittest
 
 # XXX(nnorwitz): This test sucks.  I don't know of a platform independent way
 # to verify that the messages were really logged.

Lib/test/test_tk.py

@@ -1,11 +1,12 @@
-import tkinter
-from tkinter.test import runtktests
 from test import support
-import unittest
-
 # Skip test if _tkinter wasn't built.
 support.import_module('_tkinter')
 
+import tkinter
+from tkinter.test import runtktests
+import unittest
+
+
 import tkinter
 
 try: