Use print functions consistently through, and update all __future__ imports to

reflect this.

Also, mock out sys.stderr on some tests so that their nose2 output is quieter.

A few other minor coding style consistencies.

14 files changed, 90 insertions, 90 deletions

diff --git a/src/mailman/commands/docs/aliases.rst b/src/mailman/commands/docs/aliases.rst
index 713064b0f..528a77770 100644
--- a/src/mailman/commands/docs/aliases.rst
+++ b/src/mailman/commands/docs/aliases.rst
@@ -44,14 +44,14 @@ For Postfix, there are two files in the output directory.
 
     >>> files = sorted(os.listdir(output_directory))
     >>> for file in files:
-    ...     print file
+    ...     print(file)
     postfix_domains
     postfix_lmtp
 
 The transport map file contains all the aliases for the mailing list.
 
     >>> with open(os.path.join(output_directory, 'postfix_lmtp')) as fp:
-    ...     print fp.read()
+    ...     print(fp.read())
     # AUTOMATICALLY GENERATED BY MAILMAN ON ...
     ...
     test@example.com               lmtp:[lmtp.example.com]:24
@@ -68,7 +68,7 @@ The transport map file contains all the aliases for the mailing list.
 The relay domains file contains a list of all the domains.
 
     >>> with open(os.path.join(output_directory, 'postfix_domains')) as fp:
-    ...     print fp.read()
+    ...     print(fp.read())
     # AUTOMATICALLY GENERATED BY MAILMAN ON ...
     ...
     example.com example.com
diff --git a/src/mailman/commands/docs/control.rst b/src/mailman/commands/docs/control.rst
index 184c5873b..b268b50a4 100644
--- a/src/mailman/commands/docs/control.rst
+++ b/src/mailman/commands/docs/control.rst
@@ -70,7 +70,7 @@ stops all the child processes too.
     ...         except OSError as error:
     ...             if error.errno == errno.ESRCH:
     ...                 # The process has exited.
-    ...                 print 'Master process went bye bye'
+    ...                 print('Master process went bye bye')
     ...                 return
     ...             else:
     ...                 raise
diff --git a/src/mailman/commands/docs/create.rst b/src/mailman/commands/docs/create.rst
index 6ef72e573..bec4ea8b6 100644
--- a/src/mailman/commands/docs/create.rst
+++ b/src/mailman/commands/docs/create.rst
@@ -19,7 +19,7 @@ You cannot create a mailing list in an unknown domain.
 
     >>> class FakeParser:
     ...     def error(self, message):
-    ...         print message
+    ...         print(message)
     >>> command.parser = FakeParser()
 
     >>> FakeArgs.listname = ['test@example.xx']
@@ -134,7 +134,7 @@ The language must be known to Mailman.
     Created mailing list: test3@example.com
 
     >>> mlist = list_manager.get('test3@example.com')
-    >>> print mlist.preferred_language
+    >>> print(mlist.preferred_language)
     <Language [fr] French>
     >>> FakeArgs.language = None
 
@@ -158,7 +158,7 @@ The notification message is in the virgin queue.
     1
 
     >>> for message in messages:
-    ...     print message.msg.as_string()
+    ...     print(message.msg.as_string())
     MIME-Version: 1.0
     ...
     Subject: Your new mailing list: test6@example.com
diff --git a/src/mailman/commands/docs/echo.rst b/src/mailman/commands/docs/echo.rst
index db5161e1e..32399ebfc 100644
--- a/src/mailman/commands/docs/echo.rst
+++ b/src/mailman/commands/docs/echo.rst
@@ -6,11 +6,11 @@ The mail command 'echo' simply replies with the original command and arguments
 to the sender.
 
     >>> command = config.commands['echo']
-    >>> print command.name
+    >>> print(command.name)
     echo
-    >>> print command.argument_description
+    >>> print(command.argument_description)
     [args]
-    >>> print command.description
+    >>> print(command.description)
     Echo back your arguments.
 
 The original message is ignored, but the results receive the echoed command.
@@ -22,9 +22,9 @@ The original message is ignored, but the results receive the echoed command.
     >>> results = Results()
 
     >>> from mailman.email.message import Message
-    >>> print command.process(mlist, Message(), {}, ('foo', 'bar'), results)
+    >>> print(command.process(mlist, Message(), {}, ('foo', 'bar'), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     echo foo bar
diff --git a/src/mailman/commands/docs/end.rst b/src/mailman/commands/docs/end.rst
index 8cd4b2409..38c268c1c 100644
--- a/src/mailman/commands/docs/end.rst
+++ b/src/mailman/commands/docs/end.rst
@@ -6,14 +6,14 @@ The mail command processor recognized an 'end' command which tells it to stop
 processing email messages.
 
     >>> command = config.commands['end']
-    >>> print command.name
+    >>> print(command.name)
     end
-    >>> print command.description
+    >>> print(command.description)
     Stop processing commands.
 
 The 'end' command takes no arguments.
 
-    >>> print 'DESCRIPTION:', command.argument_description
+    >>> print('DESCRIPTION:', command.argument_description)
     DESCRIPTION:
 
 The command itself is fairly simple; it just stops command processing, and the
@@ -21,17 +21,17 @@ message isn't even looked at.
 
     >>> mlist = create_list('test@example.com')
     >>> from mailman.email.message import Message
-    >>> print command.process(mlist, Message(), {}, (), None)
+    >>> print(command.process(mlist, Message(), {}, (), None))
     ContinueProcessing.no
 
 The 'stop' command is a synonym for 'end'.
 
     >>> command = config.commands['stop']
-    >>> print command.name
+    >>> print(command.name)
     stop
-    >>> print command.description
+    >>> print(command.description)
     An alias for 'end'.
-    >>> print 'DESCRIPTION:', command.argument_description
+    >>> print('DESCRIPTION:', command.argument_description)
     DESCRIPTION:
-    >>> print command.process(mlist, Message(), {}, (), None)
+    >>> print(command.process(mlist, Message(), {}, (), None))
     ContinueProcessing.no
diff --git a/src/mailman/commands/docs/help.rst b/src/mailman/commands/docs/help.rst
index a12a4008f..bbd6c8c09 100644
--- a/src/mailman/commands/docs/help.rst
+++ b/src/mailman/commands/docs/help.rst
@@ -8,11 +8,11 @@ sending the word `help` to a mailing list's -request address.
     >>> mlist = create_list('test@example.com')
     >>> from mailman.commands.eml_help import Help
     >>> help = Help()
-    >>> print help.name
+    >>> print(help.name)
     help
-    >>> print help.description
+    >>> print(help.description)
     Get help about available email commands.
-    >>> print help.argument_description
+    >>> print(help.argument_description)
     [command]
 
 With no arguments, `help` provides a list of the available commands and a
@@ -23,9 +23,9 @@ short description of each of them.
     >>> results = Results()
 
     >>> from mailman.email.message import Message
-    >>> print help.process(mlist, Message(), {}, (), results)
+    >>> print(help.process(mlist, Message(), {}, (), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     confirm     - Confirm a subscription request.
@@ -42,9 +42,9 @@ short description of each of them.
 With an argument, you can get more detailed help about a specific command.
 
     >>> results = Results()
-    >>> print help.process(mlist, Message(), {}, ('help',), results)
+    >>> print(help.process(mlist, Message(), {}, ('help',), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     help [command]
@@ -54,9 +54,9 @@ With an argument, you can get more detailed help about a specific command.
 Some commands have even more detailed help.
 
     >>> results = Results()
-    >>> print help.process(mlist, Message(), {}, ('join',), results)
+    >>> print(help.process(mlist, Message(), {}, ('join',), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     join [digest=<no|mime|plain>]
diff --git a/src/mailman/commands/docs/import.rst b/src/mailman/commands/docs/import.rst
index 2ab6f99bd..86a31d6ff 100644
--- a/src/mailman/commands/docs/import.rst
+++ b/src/mailman/commands/docs/import.rst
@@ -15,7 +15,7 @@ that into an existing mailing list in Mailman 3.0.
 
     >>> class FakeParser:
     ...     def error(self, message):
-    ...         print message
+    ...         print(message)
     >>> command.parser = FakeParser()
 
 You must specify the mailing list you are importing into, and it must exist.
@@ -48,9 +48,9 @@ import, the mailing list's 'real name' has changed.
     >>> FakeArgs.pickle_file = [
     ...     resource_filename('mailman.testing', 'config.pck')]
 
-    >>> print mlist.display_name
+    >>> print(mlist.display_name)
     Import
 
     >>> command.process(FakeArgs)
-    >>> print mlist.display_name
+    >>> print(mlist.display_name)
     Test
diff --git a/src/mailman/commands/docs/info.rst b/src/mailman/commands/docs/info.rst
index 2a5e691ae..8bc7579e6 100644
--- a/src/mailman/commands/docs/info.rst
+++ b/src/mailman/commands/docs/info.rst
@@ -31,7 +31,7 @@ By passing in the ``-o/--output`` option, you can print the info to a file.
     >>> args.output = output_path
     >>> command.process(args)
     >>> with open(output_path) as fp:
-    ...     print fp.read()
+    ...     print(fp.read())
     GNU Mailman 3...
     Python ...
     ...
diff --git a/src/mailman/commands/docs/inject.rst b/src/mailman/commands/docs/inject.rst
index 5d07e0458..63e7b0366 100644
--- a/src/mailman/commands/docs/inject.rst
+++ b/src/mailman/commands/docs/inject.rst
@@ -19,7 +19,7 @@ line.
 
     >>> class FakeParser:
     ...     def error(self, message):
-    ...         print message
+    ...         print(message)
     >>> command.parser = FakeParser()
 
 It's easy to find out which queues are available.
@@ -48,14 +48,14 @@ Usually, the text of the message to inject is in a file.
     >>> import os, tempfile
     >>> fd, filename = tempfile.mkstemp()
     >>> with os.fdopen(fd, 'w') as fp:
-    ...     print >> fp, """\
+    ...     print("""\
     ... From: aperson@example.com
     ... To: test@example.com
     ... Subject: testing
     ... Message-ID: <aardvark>
     ...
     ... This is a test message.
-    ... """
+    ... """, file=fp)
 
 However, the mailing list name is always required.
 
@@ -81,7 +81,7 @@ By default, the incoming queue is used.
     >>> items = get_queue_messages('in')
     >>> len(items)
     1
-    >>> print items[0].msg.as_string()
+    >>> print(items[0].msg.as_string())
     From: aperson@example.com
     To: test@example.com
     Subject: testing
@@ -109,7 +109,7 @@ But a different queue can be specified on the command line.
     >>> items = get_queue_messages('virgin')
     >>> len(items)
     1
-    >>> print items[0].msg.as_string()
+    >>> print(items[0].msg.as_string())
     From: aperson@example.com
     To: test@example.com
     Subject: testing
@@ -154,7 +154,7 @@ The message text can also be provided on standard input.
     >>> items = get_queue_messages('in')
     >>> len(items)
     1
-    >>> print items[0].msg.as_string()
+    >>> print(items[0].msg.as_string())
     From: bperson@example.com
     To: test@example.com
     Subject: another test
diff --git a/src/mailman/commands/docs/members.rst b/src/mailman/commands/docs/members.rst
index 18a916781..7b99e92f9 100644
--- a/src/mailman/commands/docs/members.rst
+++ b/src/mailman/commands/docs/members.rst
@@ -70,7 +70,7 @@ You can also output this list to a file.
     >>> os.close(fd)
     >>> command.process(args)
     >>> with open(args.output_filename) as fp:
-    ...     print fp.read()
+    ...     print(fp.read())
     Anne Person <anne@aaaxample.com>
     Anne Person <anne@example.com>
     Bart Person <bart@example.com>
@@ -213,7 +213,7 @@ need a file containing email addresses and full names that can be parsed by
     ...                     'Bart Person <bperson@example.com>',
     ...                     'cperson@example.com (Cate Person)',
     ...                     ):
-    ...         print >> fp, address
+    ...         print(address, file=fp)
 
     >>> args.input_filename = path
     >>> args.listname = [mlist2.fqdn_listname]
@@ -236,7 +236,7 @@ taken from standard input.
     ...                 'Elly Person <eperson@example.com>',
     ...                 'fperson@example.com (Fred Person)',
     ...                 ):
-    ...         print >> fp, address
+    ...         print(address, file=fp)
     >>> fp.seek(0)
     >>> import sys
     >>> sys.stdin = fp
@@ -263,7 +263,7 @@ Blank lines and lines that begin with '#' are ignored.
     ...                     '',
     ...                     'iperson@example.com',
     ...                     ):
-    ...         print >> fp, address
+    ...         print(address, file=fp)
 
     >>> args.input_filename = path
     >>> command.process(args)
@@ -286,7 +286,7 @@ printed.
     ...                     'aperson@example.com',
     ...                     'jperson@example.com',
     ...                     ):
-    ...         print >> fp, address
+    ...         print(address, file=fp)
 
     >>> command.process(args)
     Already subscribed (skipping): gperson@example.com
diff --git a/src/mailman/commands/docs/membership.rst b/src/mailman/commands/docs/membership.rst
index 3faccfe6a..aa3ab97e6 100644
--- a/src/mailman/commands/docs/membership.rst
+++ b/src/mailman/commands/docs/membership.rst
@@ -16,16 +16,16 @@ The mail command ``join`` subscribes an email address to the mailing list.
     >>> from mailman.commands.eml_membership import Join
     >>> from mailman.utilities.string import wrap
     >>> join = Join()
-    >>> print join.name
+    >>> print(join.name)
     join
-    >>> print wrap(join.description)
+    >>> print(wrap(join.description))
     You will be asked to confirm your subscription request and you may be
     issued a provisional password.
     <BLANKLINE>
     By using the 'digest' option, you can specify whether you want digest
     delivery or not.  If not specified, the mailing list's default
     delivery mode will be used.
-    >>> print join.argument_description
+    >>> print(join.argument_description)
     [digest=<no|mime|plain>]
 
 
@@ -43,9 +43,9 @@ If that's missing though, then an error is returned.
     >>> results = Results()
 
     >>> from mailman.email.message import Message
-    >>> print join.process(mlist, Message(), {}, (), results)
+    >>> print(join.process(mlist, Message(), {}, (), results))
     ContinueProcessing.no
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     join: No valid address found to subscribe
@@ -55,12 +55,12 @@ The ``subscribe`` command is an alias.
 
     >>> from mailman.commands.eml_membership import Subscribe
     >>> subscribe = Subscribe()
-    >>> print subscribe.name
+    >>> print(subscribe.name)
     subscribe
     >>> results = Results()
-    >>> print subscribe.process(mlist, Message(), {}, (), results)
+    >>> print(subscribe.process(mlist, Message(), {}, (), results))
     ContinueProcessing.no
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     subscribe: No valid address found to subscribe
@@ -77,9 +77,9 @@ When the message has a From field, that address will be subscribed.
     ...
     ... """)
     >>> results = Results()
-    >>> print join.process(mlist, msg, {}, (), results)
+    >>> print(join.process(mlist, msg, {}, (), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Confirmation email sent to Anne Person <anne@example.com>
@@ -91,7 +91,7 @@ first.
     >>> from mailman.interfaces.usermanager import IUserManager
     >>> from zope.component import getUtility
     >>> user_manager = getUtility(IUserManager)
-    >>> print user_manager.get_user('anne@example.com')
+    >>> print(user_manager.get_user('anne@example.com'))
     None
 
 Mailman has sent her the confirmation message.
@@ -100,7 +100,7 @@ Mailman has sent her the confirmation message.
     >>> items = get_queue_messages('virgin')
     >>> len(items)
     1
-    >>> print items[0].msg.as_string()
+    >>> print(items[0].msg.as_string())
     MIME-Version: 1.0
     ...
     Subject: confirm ...
@@ -148,16 +148,16 @@ list.
     ... """.format(token=token))
 
     >>> results = Results()
-    >>> print confirm.process(mlist, msg, {}, (token,), results)
+    >>> print(confirm.process(mlist, msg, {}, (token,), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Confirmed
     <BLANKLINE>
 
     >>> user = user_manager.get_user('anne@example.com')
-    >>> print user.display_name
+    >>> print(user.display_name)
     Anne Person
     >>> list(user.addresses)
     [<Address: Anne Person <anne@example.com> [verified] at ...>]
@@ -177,17 +177,17 @@ Joining a second list
     ... From: Anne Person <anne@example.com>
     ...
     ... """)
-    >>> print join.process(mlist_2, msg, {}, (), Results())
+    >>> print(join.process(mlist_2, msg, {}, (), Results()))
     ContinueProcessing.yes
 
 Anne of course, is still registered.
 
-    >>> print user_manager.get_user('anne@example.com')
+    >>> print(user_manager.get_user('anne@example.com'))
     <User "Anne Person" (...) at ...>
 
 But she is not a member of the mailing list.
 
-    >>> print mlist_2.members.get_member('anne@example.com')
+    >>> print(mlist_2.members.get_member('anne@example.com'))
     None
 
 One Anne confirms this subscription, she becomes a member of the mailing
@@ -206,15 +206,15 @@ list.
     ... """.format(token=token))
 
     >>> results = Results()
-    >>> print confirm.process(mlist_2, msg, {}, (token,), results)
+    >>> print(confirm.process(mlist_2, msg, {}, (token,), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Confirmed
     <BLANKLINE>
 
-    >>> print mlist_2.members.get_member('anne@example.com')
+    >>> print(mlist_2.members.get_member('anne@example.com'))
     <Member: Anne Person <anne@example.com>
              on baker@example.com as MemberRole.member>
 
@@ -227,9 +227,9 @@ list.  ``unsubscribe`` is an alias for ``leave``.
 
     >>> from mailman.commands.eml_membership import Leave
     >>> leave = Leave()
-    >>> print leave.name
+    >>> print(leave.name)
     leave
-    >>> print leave.description
+    >>> print(leave.description)
     Leave this mailing list.
     <BLANKLINE>
     You may be asked to confirm your request.
@@ -239,9 +239,9 @@ to leave it.  She sends a message to the ``-leave`` address for the list and
 is sent a confirmation message for her request.
 
     >>> results = Results()
-    >>> print leave.process(mlist_2, msg, {}, (), results)
+    >>> print(leave.process(mlist_2, msg, {}, (), results))
     ContinueProcessing.yes
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Anne Person <anne@example.com> left baker@example.com
@@ -249,7 +249,7 @@ is sent a confirmation message for her request.
 
 Anne is no longer a member of the mailing list.
 
-    >>> print mlist_2.members.get_member('anne@example.com')
+    >>> print(mlist_2.members.get_member('anne@example.com'))
     None
 
 Anne does not need to leave a mailing list with the same email address she's
@@ -261,7 +261,7 @@ will do.
     >>> address = anne.register('anne.person@example.org')
 
     >>> results = Results()
-    >>> print mlist.members.get_member('anne@example.com')
+    >>> print(mlist.members.get_member('anne@example.com'))
     <Member: Anne Person <anne@example.com>
              on alpha@example.com as MemberRole.member>
 
@@ -275,16 +275,16 @@ Since Anne's alternative address has not yet been verified, it can't be used
 to unsubscribe Anne from the alpha mailing list.
 ::
 
-    >>> print leave.process(mlist, msg, {}, (), results)
+    >>> print(leave.process(mlist, msg, {}, (), results))
     ContinueProcessing.no
 
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Invalid or unverified email address: anne.person@example.org
     <BLANKLINE>
 
-    >>> print mlist.members.get_member('anne@example.com')
+    >>> print(mlist.members.get_member('anne@example.com'))
     <Member: Anne Person <anne@example.com>
              on alpha@example.com as MemberRole.member>
 
@@ -296,16 +296,16 @@ unsubscribe her from the list.
     >>> address.verified_on = now()
 
     >>> results = Results()
-    >>> print leave.process(mlist, msg, {}, (), results)
+    >>> print(leave.process(mlist, msg, {}, (), results))
     ContinueProcessing.yes
 
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Anne Person <anne.person@example.org> left alpha@example.com
     <BLANKLINE>
 
-    >>> print mlist.members.get_member('anne@example.com')
+    >>> print(mlist.members.get_member('anne@example.com'))
     None
 
 
@@ -320,7 +320,7 @@ Bart wants to join the alpha list, so he sends his subscription request.
     ...
     ... """)
 
-    >>> print join.process(mlist, msg, {}, (), Results())
+    >>> print(join.process(mlist, msg, {}, (), Results()))
     ContinueProcessing.yes
 
 There are two messages in the virgin queue, one of which is the confirmation
@@ -335,7 +335,7 @@ message.
 
 Bart is still not a user.
 
-    >>> print user_manager.get_user('bart@example.com')
+    >>> print(user_manager.get_user('bart@example.com'))
     None
 
 Bart replies to the original message, specifically keeping the Subject header
@@ -351,10 +351,10 @@ a user of the system.
     ... """.format(token=token))
 
     >>> results = Results()
-    >>> print confirm.process(mlist, msg, {}, (token,), results)
+    >>> print(confirm.process(mlist, msg, {}, (token,), results))
     ContinueProcessing.yes
 
-    >>> print unicode(results)
+    >>> print(unicode(results))
     The results of your email command are provided below.
     <BLANKLINE>
     Confirmed
@@ -362,11 +362,11 @@ a user of the system.
 
 Now Bart is a user...
 
-    >>> print user_manager.get_user('bart@example.com')
+    >>> print(user_manager.get_user('bart@example.com'))
     <User "Bart Person" (...) at ...>
 
 ...and a member of the mailing list.
 
-    >>> print mlist.members.get_member('bart@example.com')
+    >>> print(mlist.members.get_member('bart@example.com'))
     <Member: Bart Person <bart@example.com>
              on alpha@example.com as MemberRole.member>
diff --git a/src/mailman/commands/docs/remove.rst b/src/mailman/commands/docs/remove.rst
index 35dc53c5e..c534741f3 100644
--- a/src/mailman/commands/docs/remove.rst
+++ b/src/mailman/commands/docs/remove.rst
@@ -25,7 +25,7 @@ A system administrator can remove mailing lists by the command line.
     >>> command.process(args)
     Removed list: test@example.com
 
-    >>> print list_manager.get('test@example.com')
+    >>> print(list_manager.get('test@example.com'))
     None
 
 You can also remove lists quietly.
@@ -37,5 +37,5 @@ You can also remove lists quietly.
     >>> args.quiet = True
     >>> command.process(args)
 
-    >>> print list_manager.get('test@example.com')
+    >>> print(list_manager.get('test@example.com'))
     None
diff --git a/src/mailman/commands/docs/unshunt.rst b/src/mailman/commands/docs/unshunt.rst
index ce9d70316..93d89f001 100644
--- a/src/mailman/commands/docs/unshunt.rst
+++ b/src/mailman/commands/docs/unshunt.rst
@@ -45,7 +45,7 @@ queue.
     >>> items = get_queue_messages('in')
     >>> len(items)
     1
-    >>> print items[0].msg.as_string()
+    >>> print(items[0].msg.as_string())
     From: aperson@example.com
     To: test@example.com
     Subject: A broken message
@@ -121,7 +121,7 @@ The message is automatically re-queued to the bounces queue.
     >>> len(items)
     1
 
-    >>> print items[0].msg.as_string()
+    >>> print(items[0].msg.as_string())
     From: aperson@example.com
     To: test@example.com
     Subject: A broken message
diff --git a/src/mailman/commands/docs/withlist.rst b/src/mailman/commands/docs/withlist.rst
index 99a366c9a..827d246cd 100644
--- a/src/mailman/commands/docs/withlist.rst
+++ b/src/mailman/commands/docs/withlist.rst
@@ -27,7 +27,7 @@ Because ``withlist`` is so complex, you need to request detailed help.
 
     >>> class FakeParser:
     ...     def error(self, message):
-    ...         print message
+    ...         print(message)
     >>> command.parser = FakeParser()
 
     >>> args = FakeArgs()
@@ -50,13 +50,13 @@ single argument, the mailing list.
     >>> sys.path.insert(0, config.VAR_DIR)
 
     >>> with open(os.path.join(config.VAR_DIR, 'showme.py'), 'w') as fp:
-    ...     print >> fp, """\
+    ...     print("""\
     ... def showme(mailing_list):
     ...     print "The list's name is", mailing_list.fqdn_listname
     ...
     ... def displayname(mailing_list):
     ...     print "The list's display name is", mailing_list.display_name
-    ... """
+    ... """, file=fp)
 
 If the name of the function is the same as the module, then you only need to
 name the function once.