diff --git a/launch b/launch
index 669e75000024f27fb2bd9cfc2b6a67c331392beb_bGF1bmNo..52018593726f75095d35e3fc6526287600093b45_bGF1bmNo 100755
--- a/launch
+++ b/launch
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 
 import argparse
-import json
 import os
 import re
 import subprocess
@@ -5,7 +4,6 @@
 import os
 import re
 import subprocess
-import sys
 import tarfile
 
 HOME = os.environ['HOME']
@@ -46,5 +44,6 @@
                          "(got %r)" % image_tag)
     return os.path.join(os.environ['HOME'], 'heptapod-volumes', subdir)
 
+
 DEFAULT_IMAGE_TAG = 'octobus/heptapod:testing'
 
@@ -49,5 +48,6 @@
 DEFAULT_IMAGE_TAG = 'octobus/heptapod:testing'
 
+
 def expand_join(*segments):
     return os.path.expanduser(os.path.join(*segments))