5 files changed, 14 insertions, 6 deletions

diff --git a/src/mailman/config/passlib.cfg b/src/mailman/config/passlib.cfg
index 805f0fb11..0564f9eb3 100644
--- a/src/mailman/config/passlib.cfg
+++ b/src/mailman/config/passlib.cfg
@@ -3,7 +3,6 @@
 # See http://packages.python.org/passlib/index.html for details.
 schemes = sha512_crypt, sha256_crypt
 default = sha512_crypt
-all__vary_rounds = 0.1
 sha256_crypt__min_rounds = 80000
 sha512_crypt__min_rounds = 60000
 admin__sha256_crypt__min_rounds = 160000
diff --git a/src/mailman/docs/NEWS.rst b/src/mailman/docs/NEWS.rst
index 26d7433c3..1841f8fb7 100644
--- a/src/mailman/docs/NEWS.rst
+++ b/src/mailman/docs/NEWS.rst
@@ -151,6 +151,7 @@ Interfaces
 
 Internal
 --------
+ * Add official support for Python 3.6. (Closes #295)
  * A handful of unused legacy exceptions have been removed.  The redundant
    `MailmanException` has been removed; use `MailmanError` everywhere.
  * Drop the use of the `lazr.smtptest` library, which is based on the
diff --git a/src/mailman/handlers/subject_prefix.py b/src/mailman/handlers/subject_prefix.py
index ff728d92e..20f47fc5d 100644
--- a/src/mailman/handlers/subject_prefix.py
+++ b/src/mailman/handlers/subject_prefix.py
@@ -162,7 +162,7 @@ class SubjectPrefix:
         if p.search(prefix, 1):
             # The prefix has number, so we should search prefix w/number in
             # subject.  Also, force new style.
-            prefix_pattern = p.sub(r'\s*\d+\s*', prefix_pattern)
+            prefix_pattern = p.sub(r'\\s*\\d+\\s*', prefix_pattern)
         # Substitute %d in prefix with post_id
         with suppress(TypeError):
             prefix = prefix % mlist.post_id
diff --git a/src/mailman/utilities/interact.py b/src/mailman/utilities/interact.py
index fec980b80..ac1612156 100644
--- a/src/mailman/utilities/interact.py
+++ b/src/mailman/utilities/interact.py
@@ -22,6 +22,7 @@ import sys
 import code
 
 from contextlib import suppress
+from inspect import signature
 from mailman import public
 
 
@@ -67,4 +68,10 @@ def interact(upframe=True, banner=DEFAULT_BANNER, overrides=None):
 Python %s on %s
 Type "help", "copyright", "credits" or "license" for more information.''' % (
             sys.version, sys.platform)
-    interp.interact(banner)
+    # Python 3.6 added an exitmsg keyword but we don't currently support
+    # configuring it.  For consistency between Python 3.6 and earlier
+    # versions, suppress the exit message if possible.
+    kws = dict(banner=banner)
+    if 'exitmsg' in signature(interp.interact).parameters:
+        kws['exitmsg'] = ''
+    interp.interact(**kws)
diff --git a/src/mailman/utilities/tests/test_import.py b/src/mailman/utilities/tests/test_import.py
index d74a198df..62985545f 100644
--- a/src/mailman/utilities/tests/test_import.py
+++ b/src/mailman/utilities/tests/test_import.py
@@ -65,6 +65,7 @@ def list_to_string(data):
 
 class TestBasicImport(unittest.TestCase):
     layer = ConfigLayer
+    maxDiff = None
 
     def setUp(self):
         self._mlist = create_list('blank@example.com')
@@ -322,12 +323,12 @@ class TestBasicImport(unittest.TestCase):
                          SubscriptionPolicy.confirm_then_moderate)
 
     def test_header_matches(self):
-        # This test contail real cases of header_filter_rules
+        # This test containes real cases of header_filter_rules.
         self._pckdict['header_filter_rules'] = [
             ('X\\-Spam\\-Status\\: Yes.*', 3, False),
             ('^X-Spam-Status: Yes\r\n\r\n', 2, False),
             ('^X-Spam-Level: \\*\\*\\*.*$', 3, False),
-            ('^X-Spam-Level:.\\*\\*\r\n^X-Spam:.\\Yes', 3, False),
+            ('^X-Spam-Level:.\\*\\*\r\n^X-Spam:.Yes', 3, False),
             ('Subject: \\[SPAM\\].*', 3, False),
             ('^Subject: .*loan.*', 3, False),
             ('Original-Received: from *linkedin.com*\r\n', 3, False),
@@ -363,7 +364,7 @@ class TestBasicImport(unittest.TestCase):
                 ('x-spam-status', 'Yes', 'reject'),
                 ('x-spam-level', '\\*\\*\\*.*$', 'discard'),
                 ('x-spam-level', '\\*\\*', 'discard'),
-                ('x-spam', '\\Yes', 'discard'),
+                ('x-spam', 'Yes', 'discard'),
                 ('subject', '\\[SPAM\\].*', 'discard'),
                 ('subject', '.*loan.*', 'discard'),
                 ('original-received', 'from *linkedin.com*', 'discard'),