diff -r 13be42829771 Lib/getpass.py
--- a/Lib/getpass.py	Wed Oct 28 03:15:38 2015 -0400
+++ b/Lib/getpass.py	Thu Oct 29 12:36:53 2015 +1100
@@ -99,7 +99,7 @@
     """Prompt for password with echo off, using Windows getch()."""
     if sys.stdin is not sys.__stdin__:
         return fallback_getpass(prompt, stream)
-    import msvcrt
+
     for c in prompt:
         msvcrt.putwch(c)
     pw = ""
diff -r 13be42829771 Lib/pickletools.py
--- a/Lib/pickletools.py	Wed Oct 28 03:15:38 2015 -0400
+++ b/Lib/pickletools.py	Thu Oct 29 12:36:53 2015 +1100
@@ -2794,7 +2794,7 @@
     return doctest.testmod()
 
 if __name__ == "__main__":
-    import sys, argparse
+    import argparse
     parser = argparse.ArgumentParser(
         description='disassemble one or more pickle files')
     parser.add_argument(
diff -r 13be42829771 Lib/smtplib.py
--- a/Lib/smtplib.py	Wed Oct 28 03:15:38 2015 -0400
+++ b/Lib/smtplib.py	Thu Oct 29 12:36:53 2015 +1100
@@ -1080,8 +1080,6 @@
 # Test the sendmail method, which tests most of the others.
 # Note: This always sends to localhost.
 if __name__ == '__main__':
-    import sys
-
     def prompt(prompt):
         sys.stdout.write(prompt + ": ")
         sys.stdout.flush()
diff -r 13be42829771 PC/testpy.py
--- a/PC/testpy.py	Wed Oct 28 03:15:38 2015 -0400
+++ b/PC/testpy.py	Thu Oct 29 12:36:53 2015 +1100
@@ -18,8 +18,6 @@
   a PC, you should add the dos_8x3 directory to your PYTHONPATH.""")
     sys.exit(1)
 
-import os
-
 for dir in sys.path:
     file = os.path.join(dir, "os.py")
     if os.path.isfile(file):