diff --git a/Makefile b/Makefile
index 9e408a9e5a..fe82cbaf4a 100644
--- a/Makefile
+++ b/Makefile
@@ -26,6 +26,9 @@ pep8:
 	@echo "#############################################"
 	pep8 -r --ignore=E501,E221,W291,W391,E302,E251,E203,W293,E231,E303,E201,E225 lib/ bin/
 
+pyflakes:
+	pyflakes lib/ansible/*.py
+
 clean:
 	rm -rf build
 	find . -type f -name "*.pyc" -delete
diff --git a/bin/ansible b/bin/ansible
index dcf53a9c8e..187ad6219e 100755
--- a/bin/ansible
+++ b/bin/ansible
@@ -119,7 +119,7 @@ class Cli(object):
                 options.one_line
             )
             if options.tree:
-                write_tree_file(hostname, msg)
+                write_tree_file(options.tree, hostname, bigjson(results))
             buf += msg
             
         if has_dark_hosts(results):
diff --git a/lib/ansible/playbook.py b/lib/ansible/playbook.py
index 028da31f17..92d205ce4d 100755
--- a/lib/ansible/playbook.py
+++ b/lib/ansible/playbook.py
@@ -137,7 +137,7 @@ class PlayBook(object):
         # load the module name and parameters from the task entry
         name    = task['name']
         action  = task['action']
-        comment = task.get('comment', '')
+        # comment = task.get('comment', '')
 
         tokens = shlex.split(action)
         module_name = tokens[0]
@@ -167,7 +167,6 @@ class PlayBook(object):
 
         dark      = results.get("dark", {})
         contacted = results.get("contacted", {})
-        ok_hosts  = contacted.keys()
 
         for host, msg in dark.items():
             self.processed[host] = 1
diff --git a/lib/ansible/runner.py b/lib/ansible/runner.py
index 32d3a4587c..5cdb09e6e1 100755
--- a/lib/ansible/runner.py
+++ b/lib/ansible/runner.py
@@ -27,7 +27,6 @@ import fnmatch
 import multiprocessing
 import signal
 import os
-import traceback
 import ansible.constants as C 
 import Queue
 import paramiko
diff --git a/lib/ansible/utils.py b/lib/ansible/utils.py
index 5d816ec79f..5e80f8c0e8 100755
--- a/lib/ansible/utils.py
+++ b/lib/ansible/utils.py
@@ -18,6 +18,7 @@
 ###############################################################
 
 import sys
+import os
 try:
     import json
 except ImportError:
@@ -94,11 +95,11 @@ def command_failure_msg(hostname, result, oneline):
     ''' output from a failed command run '''
     return command_generic_msg(hostname, result, oneline, 'FAILED')
 
-def write_tree_file(hostname,buf):
+def write_tree_file(tree, hostname, buf):
     ''' write something into treedir/hostname '''
     # TODO: might be nice to append playbook runs per host in a similar way
     # in which case, we'd want append mode.
-    path = os.path.join(options.tree, hostname)
+    path = os.path.join(tree, hostname)
     fd = open(path, "w+")
     fd.write(buf)
     fd.close()
@@ -155,7 +156,7 @@ def contacted_host_result(results, hostname):
 def prepare_writeable_dir(tree):
     ''' make sure a directory exists and is writeable '''
     if tree != '/':
-        tree = os.path.realpath(os.path.expanduser(options.tree))
+        tree = os.path.realpath(os.path.expanduser(tree))
     if not os.path.exists(tree):
         try:
             os.makedirs(tree)