Fixed Flake8 errors

client/deis.py

@@ -1757,25 +1757,30 @@ def providers_discover(self, args):
         # Check for locally booted Deis Controller VM
         try:
             running_vms = subprocess.check_output(
-                    ['vboxmanage', 'list', 'runningvms'],
-                    stderr=subprocess.PIPE)
+                ['vboxmanage', 'list', 'runningvms'],
+                stderr=subprocess.PIPE
+            )
         except subprocess.CalledProcessError:
             running_vms = ""
-        # Vagrant internally names a running VM using the folder name in which the Vagrantfile resides, eg;
-        # my-deis-code-folder_default_1383326629
+        # Vagrant internally names a running VM using the folder name in which the Vagrantfile
+        # resides, eg; my-deis-code-folder_default_1383326629
         deis_codebase_folder = self._session.git_root().split('/')[-1]
         if deis_codebase_folder in running_vms:
             print("Detected locally running Deis Controller VM")
-            # In order for the Controller to be able to boot Vagrant VMs it needs to run commands on the host machine.
-            # It does this via an SSH server. In order to access that server we need to send the current user's name
-            # and IP address.
+            # In order for the Controller to be able to boot Vagrant VMs it needs to run commands
+            # on the host machine. It does this via an SSH server. In order to access that server
+            # we need to send the current user's name and IP address.
             try:
                 user = subprocess.check_output(
                     "whoami",
                     stderr=subprocess.PIPE
                 ).strip()
                 ip = subprocess.check_output(
-                    "/sbin/ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -n1",
+                    "/sbin/ifconfig | \
+                    grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | \
+                    grep -Eo '([0-9]*\.){3}[0-9]*' | \
+                    grep -v '127.0.0.1' | \
+                    head -n1",
                     stderr=subprocess.PIPE,
                     shell=True
                 ).strip()
@@ -1798,7 +1803,6 @@ def providers_discover(self, args):
         else:
             print("No Vagrant VMs detected")
 
-
     def providers_info(self, args):
         """
         Print information about a specific provider

provider/vagrant.py

@@ -72,31 +72,31 @@ def build_node(node):
     node['params'].setdefault('memory', '512')
     template = open('/opt/deis/controller/contrib/vagrant/nodes_vagrantfile_template.rb')
     raw = string.Template(template.read())
-    result = raw.substitute({ 'id':uid, 'memory':node['params']['memory'] })
+    result = raw.substitute({'id': uid, 'memory': node['params']['memory']})
 
     # Make a folder for the VM with its own Vagrantfile. Vagrant will then create a .vagrant folder
     # there too when it first gets booted.
     node_dir = HOST_NODES_DIR + '/' + uid
     mkdir = 'mkdir ' + node_dir
     cp_tpl = 'echo "' + result.replace('"', '\\"') + '" > ' + node_dir + '/Vagrantfile'
-    _host_ssh(commands = [mkdir, cp_tpl], creds = node['creds'])
+    _host_ssh(commands=[mkdir, cp_tpl], creds=node['creds'])
 
     # Boot the VM
-    _run_vagrant_command(uid, args = ['up'], creds = node['creds'])
+    _run_vagrant_command(uid, args=['up'], creds=node['creds'])
 
     # Copy the layer's public SSH key to the VM so that the Controller can access it.
     _run_vagrant_command(
         uid,
-        args = [
+        args=[
             'ssh',
             '-c',
             '"echo \\"' + node['ssh_public_key'] + '\\" >> /home/vagrant/.ssh/authorized_keys"'
         ],
-        creds = node['creds'],
+        creds=node['creds'],
     )
 
     provider_id = uid
-    fqdn = provider_id + '.local' # hostname is broadcast via avahi-daemon
+    fqdn = provider_id + '.local'  # hostname is broadcast via avahi-daemon
     metadata = {
         'id': uid,
         'fqdn': fqdn,
@@ -114,11 +114,11 @@ def destroy_node(node):
 
     # This is useful if node creation failed. So that there's a record in the DB, but it has no
     # ID associated with it.
-    if node['provider_id'] == None:
+    if node['provider_id'] is None:
         return
 
     # Shut the VM down and destroy it
-    _run_vagrant_command(node['provider_id'], args = ['destroy', '--force'], creds = node['creds'])
+    _run_vagrant_command(node['provider_id'], args=['destroy', '--force'], creds=node['creds'])
     node_dir = HOST_NODES_DIR + '/' + node['provider_id']
 
     # Sanity check before `rm -rf`
@@ -128,21 +128,21 @@ def destroy_node(node):
     # Completely remove the folder that contained the VM
     rm_vagrantfile = 'rm ' + node_dir + '/Vagrantfile'
     rm_node_dir = 'rm -rf ' + node_dir
-    _host_ssh(commands = [rm_vagrantfile, rm_node_dir], creds = node['creds'])
+    _host_ssh(commands=[rm_vagrantfile, rm_node_dir], creds=node['creds'])
 
 
-def _run_vagrant_command(node_id, args = [], creds = {}):
+def _run_vagrant_command(node_id, args=[], creds={}):
     """
     args: A tuple of arguments to a vagrant command line.
     e.g. ['up', 'my_vm_name', '--no-provision']
     """
 
     cd = 'cd ' + HOST_NODES_DIR + '/' + node_id
     command = ['vagrant'] + [arg for arg in args if arg is not None]
-    return _host_ssh(commands = [cd, ' '.join(command)], creds = creds)
+    return _host_ssh(commands=[cd, ' '.join(command)], creds=creds)
 
 
-def _host_ssh(creds = {}, commands = []):
+def _host_ssh(creds={}, commands=[]):
     """
     Connect to the host machine. Namely the user's local machine.
     """