diff --git a/ansible_mitogen/connection.py b/ansible_mitogen/connection.py
index 90b5e41a..6a6f387e 100644
--- a/ansible_mitogen/connection.py
+++ b/ansible_mitogen/connection.py
@@ -37,6 +37,7 @@ import jinja2.runtime
 import ansible.constants as C
 import ansible.errors
 import ansible.plugins.connection
+import ansible.utils.shlex
 
 import mitogen.unix
 import mitogen.utils
@@ -243,7 +244,7 @@ def config_from_play_context(transport, inventory_name, connection):
                 getattr(connection._play_context, 'ssh_common_args', ''),
                 getattr(connection._play_context, 'ssh_extra_args', '')
             )
-            for term in shlex.split(s or '')
+            for term in ansible.utils.shlex.shlex_split(s or '')
         ],
         'become_exe': connection._play_context.become_exe,
         'sudo_args': [
@@ -252,7 +253,7 @@ def config_from_play_context(transport, inventory_name, connection):
                 connection._play_context.sudo_flags,
                 connection._play_context.become_flags
             )
-            for term in shlex.split(s or '')
+            for term in ansible.utils.shlex.shlex_split(s or '')
         ],
         'mitogen_via': connection.mitogen_via,
         'mitogen_kind': connection.mitogen_kind,
diff --git a/ansible_mitogen/logging.py b/ansible_mitogen/logging.py
index 071ecd10..33d49831 100644
--- a/ansible_mitogen/logging.py
+++ b/ansible_mitogen/logging.py
@@ -40,7 +40,7 @@ class Handler(logging.Handler):
     Use Mitogen's log format, but send the result to a Display method.
     """
     def __init__(self, display, normal_method):
-        super(Handler, self).__init__()
+        logging.Handler.__init__(self)
         self.formatter = mitogen.utils.log_get_formatter(usec=True)
         self.display = display
         self.normal_method = normal_method
diff --git a/ansible_mitogen/runner.py b/ansible_mitogen/runner.py
index 7155aee1..1ae6a907 100644
--- a/ansible_mitogen/runner.py
+++ b/ansible_mitogen/runner.py
@@ -217,10 +217,10 @@ class ModuleUtilsImporter(object):
     """
     def __init__(self, context, module_utils):
         self._context = context
-        self._by_fullname = {
-            fullname: (path, is_pkg)
+        self._by_fullname = dict(
+            (fullname, (path, is_pkg))
             for fullname, path, is_pkg in module_utils
-        }
+        )
         self._loaded = set()
         sys.meta_path.insert(0, self)
 
diff --git a/mitogen/debug.py b/mitogen/debug.py
index 312c8d9a..a9a06763 100644
--- a/mitogen/debug.py
+++ b/mitogen/debug.py
@@ -77,26 +77,25 @@ def get_subclasses(klass):
 
 
 def get_routers():
-    kl
-    return {
-        _hex(id(router)): router
+    return dict(
+        (_hex(id(router)), router)
         for klass in get_subclasses(mitogen.core.Router)
         for router in gc.get_referrers(klass)
         if isinstance(router, mitogen.core.Router)
-    }
+    )
 
 
 def get_router_info():
     return {
-        'routers': {
-            id_: {
+        'routers': dict(
+            (id_, {
                 'id': id_,
                 'streams': len(set(router._stream_by_id.values())),
                 'contexts': len(set(router._context_by_id.values())),
                 'handles': len(router._handle_map),
-            }
+            })
             for id_, router in get_routers().items()
-        }
+        )
     }
 
 
@@ -121,10 +120,10 @@ def get_stream_info(router_id):
 
 
 def format_stacks():
-    name_by_id = {
-        t.ident: t.name
+    name_by_id = dict(
+        (t.ident, t.name)
         for t in threading.enumerate()
-    }
+    )
 
     l = ['', '']
     for threadId, stack in sys._current_frames().items():
diff --git a/mitogen/parent.py b/mitogen/parent.py
index 7e095dea..0ebad519 100644
--- a/mitogen/parent.py
+++ b/mitogen/parent.py
@@ -247,7 +247,6 @@ def hybrid_tty_create_child(args):
     mitogen.core.set_block(childfp)
     disable_echo(master_fd)
     disable_echo(slave_fd)
-
     proc = subprocess.Popen(
         args=args,
         stdin=childfp,
diff --git a/mitogen/utils.py b/mitogen/utils.py
index df876ea0..d02c3f9c 100644
--- a/mitogen/utils.py
+++ b/mitogen/utils.py
@@ -37,6 +37,7 @@ import mitogen.master
 
 
 LOG = logging.getLogger('mitogen')
+iteritems = getattr(dict, 'iteritems', dict.items)
 
 
 def disable_site_packages():
@@ -112,7 +113,7 @@ PASSTHROUGH = (
 
 def cast(obj):
     if isinstance(obj, dict):
-        return {cast(k): cast(v) for k, v in obj.iteritems()}
+        return dict((cast(k), cast(v)) for k, v in iteritems(obj))
     if isinstance(obj, (list, tuple)):
         return [cast(v) for v in obj]
     if isinstance(obj, PASSTHROUGH):