diff -r 000000000000 -r ae805ac0140d python-2.5.2/win32/Lib/test/test_select.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python-2.5.2/win32/Lib/test/test_select.py	Fri Apr 03 17:19:34 2009 +0100
@@ -0,0 +1,70 @@
+# Testing select module
+from test.test_support import verbose, reap_children
+import select
+import os
+
+# test some known error conditions
+try:
+    rfd, wfd, xfd = select.select(1, 2, 3)
+except TypeError:
+    pass
+else:
+    print 'expected TypeError exception not raised'
+
+class Nope:
+    pass
+
+class Almost:
+    def fileno(self):
+        return 'fileno'
+
+try:
+    rfd, wfd, xfd = select.select([Nope()], [], [])
+except TypeError:
+    pass
+else:
+    print 'expected TypeError exception not raised'
+
+try:
+    rfd, wfd, xfd = select.select([Almost()], [], [])
+except TypeError:
+    pass
+else:
+    print 'expected TypeError exception not raised'
+
+try:
+    rfd, wfd, xfd = select.select([], [], [], 'not a number')
+except TypeError:
+    pass
+else:
+    print 'expected TypeError exception not raised'
+
+
+def test():
+    import sys
+    if sys.platform[:3] in ('win', 'mac', 'os2', 'riscos'):
+        if verbose:
+            print "Can't test select easily on", sys.platform
+        return
+    cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'
+    p = os.popen(cmd, 'r')
+    for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
+        if verbose:
+            print 'timeout =', tout
+        rfd, wfd, xfd = select.select([p], [], [], tout)
+        if (rfd, wfd, xfd) == ([], [], []):
+            continue
+        if (rfd, wfd, xfd) == ([p], [], []):
+            line = p.readline()
+            if verbose:
+                print repr(line)
+            if not line:
+                if verbose:
+                    print 'EOF'
+                break
+            continue
+        print 'Unexpected return values from select():', rfd, wfd, xfd
+    p.close()
+    reap_children()
+
+test()