diff --git a/Lib/base64.py b/Lib/base64.py
index e708136..a8d9f21 100755
--- a/Lib/base64.py
+++ b/Lib/base64.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """RFC 3548: Base16, Base32, Base64 Data Encodings"""
 
diff --git a/Lib/cProfile.py b/Lib/cProfile.py
index a7686ed..3e2b2ed 100755
--- a/Lib/cProfile.py
+++ b/Lib/cProfile.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Python interface for the 'lsprof' profiler.
    Compatible with the 'profile' module.
diff --git a/Lib/difflib.py b/Lib/difflib.py
index 264860e..292bba9 100644
--- a/Lib/difflib.py
+++ b/Lib/difflib.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """
 Module difflib -- helpers for computing deltas between objects.
diff --git a/Lib/http/cookies.py b/Lib/http/cookies.py
index 1051cdd..da30e25 100644
--- a/Lib/http/cookies.py
+++ b/Lib/http/cookies.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 
 ####
diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index edc9334..ef82d81 100644
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 import os
 import os.path
diff --git a/Lib/keyword.py b/Lib/keyword.py
index a7abe2b..a5974b5 100755
--- a/Lib/keyword.py
+++ b/Lib/keyword.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Keywords (from "graminit.c")
 
diff --git a/Lib/lib2to3/pgen2/token.py b/Lib/lib2to3/pgen2/token.py
index 1c81065..6a6d0b6 100755
--- a/Lib/lib2to3/pgen2/token.py
+++ b/Lib/lib2to3/pgen2/token.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Token constants (from "token.h")."""
 
diff --git a/Lib/lib2to3/tests/pytree_idempotency.py b/Lib/lib2to3/tests/pytree_idempotency.py
index 414eb4d..a02bbfe 100755
--- a/Lib/lib2to3/tests/pytree_idempotency.py
+++ b/Lib/lib2to3/tests/pytree_idempotency.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2006 Google, Inc. All Rights Reserved.
 # Licensed to PSF under a Contributor Agreement.
 
diff --git a/Lib/mailbox.py b/Lib/mailbox.py
index 3f299a8..c2c9b5c 100755
--- a/Lib/mailbox.py
+++ b/Lib/mailbox.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Read/write support for Maildir, mbox, MH, Babyl, and MMDF mailboxes."""
 
diff --git a/Lib/pdb.py b/Lib/pdb.py
index 22dcff7..b15a3d1 100755
--- a/Lib/pdb.py
+++ b/Lib/pdb.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """A Python debugger."""
 
diff --git a/Lib/platform.py b/Lib/platform.py
index b6e7596..7d39250 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """ This module tries to retrieve as much platform-identifying data as
     possible. It makes this information available via function APIs.
diff --git a/Lib/profile.py b/Lib/profile.py
index 4eb86a8..a09fffe 100755
--- a/Lib/profile.py
+++ b/Lib/profile.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 #
 # Class for profiling python code. rev 1.0  6/2/94
 #
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index 79fb54a..4a8017e 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: latin-1 -*-
 """Generate Python documentation in HTML or text for interactive use.
 
diff --git a/Lib/quopri.py b/Lib/quopri.py
index ff27923..3d0f0ac 100755
--- a/Lib/quopri.py
+++ b/Lib/quopri.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Conversions to/from quoted-printable transport encoding as per RFC 1521."""
 
diff --git a/Lib/smtpd.py b/Lib/smtpd.py
index 3dc9793..17b7427 100755
--- a/Lib/smtpd.py
+++ b/Lib/smtpd.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """An RFC 2821 smtp proxy.
 
 Usage: %(program)s [options] [localhost:localport [remotehost:remoteport]]
diff --git a/Lib/smtplib.py b/Lib/smtplib.py
index a01a184..69ec9ec 100755
--- a/Lib/smtplib.py
+++ b/Lib/smtplib.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 '''SMTP/ESMTP client class.
 
diff --git a/Lib/symbol.py b/Lib/symbol.py
index ea8f2f5..e3fff34 100755
--- a/Lib/symbol.py
+++ b/Lib/symbol.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Non-terminal symbols of Python grammar (from "graminit.h")."""
 
diff --git a/Lib/tabnanny.py b/Lib/tabnanny.py
index 0ae5e9f..2c6fb0c 100755
--- a/Lib/tabnanny.py
+++ b/Lib/tabnanny.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """The Tab Nanny despises ambiguous indentation.  She knows no mercy.
 
diff --git a/Lib/tarfile.py b/Lib/tarfile.py
index e28b1c7..8684493 100644
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #-------------------------------------------------------------------
 # tarfile.py
 #-------------------------------------------------------------------
diff --git a/Lib/test/crashers/recursive_call.py b/Lib/test/crashers/recursive_call.py
index 31c8963..2d160a7 100644
--- a/Lib/test/crashers/recursive_call.py
+++ b/Lib/test/crashers/recursive_call.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # No bug report AFAIK, mail on python-dev on 2006-01-10
 
diff --git a/Lib/test/curses_tests.py b/Lib/test/curses_tests.py
index 7dedbbc..40e832d 100644
--- a/Lib/test/curses_tests.py
+++ b/Lib/test/curses_tests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # $Id: ncurses.py 36559 2004-07-18 05:56:09Z tim_one $
 #
diff --git a/Lib/test/pystone.py b/Lib/test/pystone.py
index 614551f..aad4d8c 100755
--- a/Lib/test/pystone.py
+++ b/Lib/test/pystone.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """
 "PYSTONE" Benchmark Program
diff --git a/Lib/test/re_tests.py b/Lib/test/re_tests.py
index d314e20..5d16e3d 100755
--- a/Lib/test/re_tests.py
+++ b/Lib/test/re_tests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- mode: python -*-
 
 # Re test suite and benchmark suite v1.5
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 9f631f4..d4f40aa 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Regression test.
 
diff --git a/Lib/test/test___future__.py b/Lib/test/test___future__.py
index f41b879..9ae4ce4 100644
--- a/Lib/test/test___future__.py
+++ b/Lib/test/test___future__.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 import unittest
 from test import support
 import __future__
diff --git a/Lib/test/test_array.py b/Lib/test/test_array.py
index 8a3796c..5de562f 100755
--- a/Lib/test/test_array.py
+++ b/Lib/test/test_array.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test the arraymodule.
    Roger E. Masse
 """
diff --git a/Lib/test/test_binhex.py b/Lib/test/test_binhex.py
index 06fd98a..d6ef84a 100755
--- a/Lib/test/test_binhex.py
+++ b/Lib/test/test_binhex.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test script for the binhex C module
 
    Uses the mechanism of the python binhex module
diff --git a/Lib/test/test_bz2.py b/Lib/test/test_bz2.py
index 9a9afa6..dbbdad3 100644
--- a/Lib/test/test_bz2.py
+++ b/Lib/test/test_bz2.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 from test import support
 from test.support import TESTFN
 
diff --git a/Lib/test/test_cmd.py b/Lib/test/test_cmd.py
index f102fe0..11602f1 100644
--- a/Lib/test/test_cmd.py
+++ b/Lib/test/test_cmd.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
 Test script for the 'cmd' module
 Original by Michael Schneider
diff --git a/Lib/test/test_codecencodings_cn.py b/Lib/test/test_codecencodings_cn.py
index 77bac13..a2d9718 100644
--- a/Lib/test/test_codecencodings_cn.py
+++ b/Lib/test/test_codecencodings_cn.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecencodings_cn.py
 #   Codec encoding tests for PRC encodings.
diff --git a/Lib/test/test_codecencodings_hk.py b/Lib/test/test_codecencodings_hk.py
index b1deb71..ccdc0b4 100644
--- a/Lib/test/test_codecencodings_hk.py
+++ b/Lib/test/test_codecencodings_hk.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecencodings_hk.py
 #   Codec encoding tests for HongKong encodings.
diff --git a/Lib/test/test_codecencodings_jp.py b/Lib/test/test_codecencodings_jp.py
index e2cd7d7..f56a373 100644
--- a/Lib/test/test_codecencodings_jp.py
+++ b/Lib/test/test_codecencodings_jp.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecencodings_jp.py
 #   Codec encoding tests for Japanese encodings.
diff --git a/Lib/test/test_codecencodings_kr.py b/Lib/test/test_codecencodings_kr.py
index 34fade9..de4da7f 100644
--- a/Lib/test/test_codecencodings_kr.py
+++ b/Lib/test/test_codecencodings_kr.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecencodings_kr.py
 #   Codec encoding tests for ROK encodings.
diff --git a/Lib/test/test_codecencodings_tw.py b/Lib/test/test_codecencodings_tw.py
index 6b840d3..12d3c9f 100644
--- a/Lib/test/test_codecencodings_tw.py
+++ b/Lib/test/test_codecencodings_tw.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecencodings_tw.py
 #   Codec encoding tests for ROC encodings.
diff --git a/Lib/test/test_codecmaps_cn.py b/Lib/test/test_codecmaps_cn.py
index 34a910d..063919d 100644
--- a/Lib/test/test_codecmaps_cn.py
+++ b/Lib/test/test_codecmaps_cn.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecmaps_cn.py
 #   Codec mapping tests for PRC encodings
diff --git a/Lib/test/test_codecmaps_hk.py b/Lib/test/test_codecmaps_hk.py
index ddb1208..bbe1f2f 100644
--- a/Lib/test/test_codecmaps_hk.py
+++ b/Lib/test/test_codecmaps_hk.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecmaps_hk.py
 #   Codec mapping tests for HongKong encodings
diff --git a/Lib/test/test_codecmaps_jp.py b/Lib/test/test_codecmaps_jp.py
index 75db00c..652bd81 100644
--- a/Lib/test/test_codecmaps_jp.py
+++ b/Lib/test/test_codecmaps_jp.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecmaps_jp.py
 #   Codec mapping tests for Japanese encodings
diff --git a/Lib/test/test_codecmaps_kr.py b/Lib/test/test_codecmaps_kr.py
index 0da9d1c..d909c8b 100644
--- a/Lib/test/test_codecmaps_kr.py
+++ b/Lib/test/test_codecmaps_kr.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecmaps_kr.py
 #   Codec mapping tests for ROK encodings
diff --git a/Lib/test/test_codecmaps_tw.py b/Lib/test/test_codecmaps_tw.py
index e6df3a7..6db5091 100644
--- a/Lib/test/test_codecmaps_tw.py
+++ b/Lib/test/test_codecmaps_tw.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_codecmaps_tw.py
 #   Codec mapping tests for ROC encodings
diff --git a/Lib/test/test_dbm.py b/Lib/test/test_dbm.py
index 78357a0..c1be7d9 100644
--- a/Lib/test/test_dbm.py
+++ b/Lib/test/test_dbm.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test script for the dbm.open function based on testdumbdbm.py"""
 
 import os
diff --git a/Lib/test/test_dbm_dumb.py b/Lib/test/test_dbm_dumb.py
index 7a1a16e..a05db91 100644
--- a/Lib/test/test_dbm_dumb.py
+++ b/Lib/test/test_dbm_dumb.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test script for the dumbdbm module
    Original by Roger E. Masse
 """
diff --git a/Lib/test/test_eof.py b/Lib/test/test_eof.py
index 4e37560..fb4ac9a 100644
--- a/Lib/test/test_eof.py
+++ b/Lib/test/test_eof.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """test script for a few new invalid token catches"""
 
 import unittest
diff --git a/Lib/test/test_errno.py b/Lib/test/test_errno.py
index 621335c..e7d5ce5 100755
--- a/Lib/test/test_errno.py
+++ b/Lib/test/test_errno.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test the errno module
    Roger E. Masse
 """
diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
index 429ada0..7eade6f 100644
--- a/Lib/test/test_gzip.py
+++ b/Lib/test/test_gzip.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test script for the gzip module.
 """
 
diff --git a/Lib/test/test_keywordonlyarg.py b/Lib/test/test_keywordonlyarg.py
index b771a6c..6a88b3d 100644
--- a/Lib/test/test_keywordonlyarg.py
+++ b/Lib/test/test_keywordonlyarg.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """Unit tests for the keyword only argument specified in PEP 3102."""
 
diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index cb6985e..02ac00e 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2001-2010 by Vinay Sajip. All Rights Reserved.
 #
diff --git a/Lib/test/test_marshal.py b/Lib/test/test_marshal.py
index 6688785..9de0165 100644
--- a/Lib/test/test_marshal.py
+++ b/Lib/test/test_marshal.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from test import support
 import marshal
diff --git a/Lib/test/test_multibytecodec.py b/Lib/test/test_multibytecodec.py
index e4e86ff..ce860d7 100644
--- a/Lib/test/test_multibytecodec.py
+++ b/Lib/test/test_multibytecodec.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_multibytecodec.py
 #   Unit test for multibytecodec itself
diff --git a/Lib/test/test_multibytecodec_support.py b/Lib/test/test_multibytecodec_support.py
index 75b3363..70e4d75 100644
--- a/Lib/test/test_multibytecodec_support.py
+++ b/Lib/test/test_multibytecodec_support.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_multibytecodec_support.py
 #   Common Unittest Routines for CJK codecs
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index 7fcbdc32..452e192 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 #
 # Unit tests for the multiprocessing package
diff --git a/Lib/test/test_popen.py b/Lib/test/test_popen.py
index 24fb846..da0c04e 100644
--- a/Lib/test/test_popen.py
+++ b/Lib/test/test_popen.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Basic tests for os.popen()
 
   Particularly useful for platforms that fake popen.
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
index b64a8f7..c59e4fa 100644
--- a/Lib/test/test_random.py
+++ b/Lib/test/test_random.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import unittest
 import random
diff --git a/Lib/test/test_smtpnet.py b/Lib/test/test_smtpnet.py
index 5b1b38c0..6f7f9ef 100644
--- a/Lib/test/test_smtpnet.py
+++ b/Lib/test/test_smtpnet.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import unittest
 from test import support
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 4dc34ce..6bff03e 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import unittest
 from test import support
diff --git a/Lib/test/test_tcl.py b/Lib/test/test_tcl.py
index eebdd25..0df1fea 100644
--- a/Lib/test/test_tcl.py
+++ b/Lib/test/test_tcl.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import unittest
 import os
diff --git a/Lib/test/test_urllib2_localnet.py b/Lib/test/test_urllib2_localnet.py
index 965e0f4..c0f20f5 100644
--- a/Lib/test/test_urllib2_localnet.py
+++ b/Lib/test/test_urllib2_localnet.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import email
 import threading
diff --git a/Lib/test/test_urllib2net.py b/Lib/test/test_urllib2net.py
index 70b4cfa..b933194 100644
--- a/Lib/test/test_urllib2net.py
+++ b/Lib/test/test_urllib2net.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import unittest
 from test import support
diff --git a/Lib/test/test_urllibnet.py b/Lib/test/test_urllibnet.py
index 221b698..f324be9 100644
--- a/Lib/test/test_urllibnet.py
+++ b/Lib/test/test_urllibnet.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import unittest
 from test import support
diff --git a/Lib/test/test_urlparse.py b/Lib/test/test_urlparse.py
index 1658411..ca4eaa5 100644
--- a/Lib/test/test_urlparse.py
+++ b/Lib/test/test_urlparse.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 from test import support
 import unittest
diff --git a/Lib/test/test_userstring.py b/Lib/test/test_userstring.py
index 0538138..7a8b932 100755
--- a/Lib/test/test_userstring.py
+++ b/Lib/test/test_userstring.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # UserString is a wrapper around the native builtin string type.
 # UserString instances should behave similar to builtin string objects.
 
diff --git a/Lib/test/test_with.py b/Lib/test/test_with.py
index 640f31c..74b5f19 100644
--- a/Lib/test/test_with.py
+++ b/Lib/test/test_with.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """Unit tests for the with statement specified in PEP 343."""
 
diff --git a/Lib/test/test_xmlrpc_net.py b/Lib/test/test_xmlrpc_net.py
index c531b62..493e363 100644
--- a/Lib/test/test_xmlrpc_net.py
+++ b/Lib/test/test_xmlrpc_net.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import collections
 import errno
diff --git a/Lib/timeit.py b/Lib/timeit.py
index 7b9b72c..63d94ca 100644
--- a/Lib/timeit.py
+++ b/Lib/timeit.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Tool for measuring execution time of small code snippets.
 
diff --git a/Lib/token.py b/Lib/token.py
index da4d29b..a48bf3c 100755
--- a/Lib/token.py
+++ b/Lib/token.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 """Token constants (from "token.h")."""
 
diff --git a/Lib/trace.py b/Lib/trace.py
index e6316b6..9d91fe8 100644
--- a/Lib/trace.py
+++ b/Lib/trace.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # portions copyright 2001, Autonomous Zones Industries, Inc., all rights...
 # err...  reserved and offered to the public under the terms of the
diff --git a/Lib/uu.py b/Lib/uu.py
index d70f0e6..c917cdd 100755
--- a/Lib/uu.py
+++ b/Lib/uu.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 # Copyright 1994 by Lance Ellinghouse
 # Cathedral City, California Republic, United States of America.
diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
index aee797d..72ba1ac 100644
--- a/Lib/webbrowser.py
+++ b/Lib/webbrowser.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Interfaces for launching and remotely controlling Web browsers."""
 # Maintained by Georg Brandl.