diff --git a/Lib/poplib.py b/Lib/poplib.py
index c67cbc67644..fb24a0f9c5b 100644
--- a/Lib/poplib.py
+++ b/Lib/poplib.py
@@ -14,6 +14,8 @@ Based on the J. Myers POP3 draft, Jan. 96
 
 import re, socket
 
+__all__ = ["POP3","error_proto"]
+
 # Exception raised when an error or invalid response is received:
 
 class error_proto(Exception): pass
diff --git a/Lib/posixfile.py b/Lib/posixfile.py
index 58c4b4f5f89..da374ad9a99 100644
--- a/Lib/posixfile.py
+++ b/Lib/posixfile.py
@@ -53,6 +53,8 @@ f.lock(mode [, len [, start [, whence]]])
               query only
 """
 
+__all__ = ["open","fileopen","SEEK_SET","SEEK_CUR","SEEK_END"]
+
 class _posixfile_:
     """File wrapper class that provides extra POSIX file routines."""
 
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index 2d18f5d47ab..223d6ba3229 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -13,6 +13,11 @@ for manipulation of the pathname component of URLs.
 import os
 import stat
 
+__all__ = ["normcase","isabs","join","splitdrive","split","splitext",
+           "basename","dirname","commonprefix","getsize","getmtime",
+           "getatime","islink","exists","isdir","isfile","ismount",
+           "walk","expanduser","expandvars","normpath","abspath",
+           "samefile","sameopenfile","samestat"]
 
 # Normalize the case of a pathname.  Trivial in Posix, string.lower on Mac.
 # On MS-DOS this may also turn slashes into backslashes; however, other
diff --git a/Lib/pprint.py b/Lib/pprint.py
index 8e10e9d9dc8..814ca48af07 100644
--- a/Lib/pprint.py
+++ b/Lib/pprint.py
@@ -41,6 +41,8 @@ try:
 except ImportError:
     from StringIO import StringIO
 
+__all__ = ["pprint","pformat","isreadable","isrecursive","saferepr",
+           "PrettyPrinter"]
 
 def pprint(object, stream=None):
     """Pretty-print a Python object to a stream [default is sys.sydout]."""
diff --git a/Lib/pre.py b/Lib/pre.py
index 35d3e3a9106..30f049193d8 100644
--- a/Lib/pre.py
+++ b/Lib/pre.py
@@ -87,6 +87,8 @@ This module also defines an exception 'error'.
 import sys
 from pcre import *
 
+__all__ = ["match","search","sub","subn","split","findall","escape","compile"]
+
 #
 # First, the public part of the interface:
 #
diff --git a/Lib/profile.py b/Lib/profile.py
index c32b3f8b3bc..afc47eb347a 100755
--- a/Lib/profile.py
+++ b/Lib/profile.py
@@ -40,6 +40,7 @@ import os
 import time
 import marshal
 
+__all__ = ["run","help","Profile"]
 
 # Sample timer for use with
 #i_count = 0
diff --git a/Lib/pstats.py b/Lib/pstats.py
index 764d89c95ea..ea459d72003 100644
--- a/Lib/pstats.py
+++ b/Lib/pstats.py
@@ -39,6 +39,8 @@ import re
 
 import fpformat
 
+__all__ = ["Stats"]
+
 class Stats:
     """This class is used for creating reports from data generated by the
     Profile class.  It is a "friend" of that class, and imports data either
diff --git a/Lib/pty.py b/Lib/pty.py
index ef2113bbb08..64d391b63c6 100644
--- a/Lib/pty.py
+++ b/Lib/pty.py
@@ -10,6 +10,8 @@ from select import select
 import os, FCNTL
 import tty
 
+__all__ = ["openpty","fork","spawn"]
+
 STDIN_FILENO = 0
 STDOUT_FILENO = 1
 STDERR_FILENO = 2
diff --git a/Lib/py_compile.py b/Lib/py_compile.py
index da3bdafb969..48c4afc3623 100644
--- a/Lib/py_compile.py
+++ b/Lib/py_compile.py
@@ -6,6 +6,8 @@ This module has intimate knowledge of the format of .pyc files.
 import imp
 MAGIC = imp.get_magic()
 
+__all__ = ["compile"]
+
 def wr_long(f, x):
     """Internal; write a 32-bit int to a file in little-endian order."""
     f.write(chr( x        & 0xff))
diff --git a/Lib/pyclbr.py b/Lib/pyclbr.py
index b4e934bff74..c9bb2fe2bbb 100644
--- a/Lib/pyclbr.py
+++ b/Lib/pyclbr.py
@@ -59,6 +59,8 @@ import imp
 import re
 import string
 
+__all__ = ["readmodule"]
+
 TABWIDTH = 8
 
 _getnext = re.compile(r"""
diff --git a/Lib/quopri.py b/Lib/quopri.py
index 5bb11f653d7..5f5e80c6dbf 100755
--- a/Lib/quopri.py
+++ b/Lib/quopri.py
@@ -4,6 +4,8 @@
 
 # (Dec 1991 version).
 
+__all__ = ["encode","decode"]
+
 ESCAPE = '='
 MAXLINESIZE = 76
 HEX = '0123456789ABCDEF'
diff --git a/Lib/test/test___all__.py b/Lib/test/test___all__.py
index f6f00c5cd5a..cced8592c44 100644
--- a/Lib/test/test___all__.py
+++ b/Lib/test/test___all__.py
@@ -99,4 +99,15 @@ check_all("pdb")
 check_all("pickle")
 check_all("pipes")
 check_all("popen2")
+check_all("poplib")
+check_all("posixfile")
+check_all("posixpath")
+check_all("pprint")
+check_all("pre")
+check_all("profile")
+check_all("pstats")
+check_all("pty")
+check_all("py_compile")
+check_all("pyclbr")
+check_all("quopri")
 check_all("robotparser")