Reformat N2VC to standardized format

Change-Id: I7bfc2236cd5f059dc1b659e9fb746fef619124b8
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/n2vc/provisioner.py b/n2vc/provisioner.py
index 91d5c04..e2b51b9 100644
--- a/n2vc/provisioner.py
+++ b/n2vc/provisioner.py
@@ -250,7 +250,8 @@
             params.series = hw["series"]
             params.instance_id = "manual:{}".format(self.host)
             params.nonce = "manual:{}:{}".format(
-                self.host, str(uuid.uuid4()),
+                self.host,
+                str(uuid.uuid4()),
             )  # a nop for Juju w/manual machines
             params.hardware_characteristics = {
                 "arch": hw["arch"],
@@ -261,7 +262,9 @@
 
         return params
 
-    async def install_agent(self, connection, nonce, machine_id, proxy=None, series=None):
+    async def install_agent(
+        self, connection, nonce, machine_id, proxy=None, series=None
+    ):
         """
         :param object connection: Connection to Juju API
         :param str nonce: The nonce machine specification
@@ -297,7 +300,9 @@
             - '[::1]:17070'
         """
         if proxy:
-            m = re.search(r"apiaddresses:\n- (\d+\.\d+\.\d+\.\d+):17070", results.script)
+            m = re.search(
+                r"apiaddresses:\n- (\d+\.\d+\.\d+\.\d+):17070", results.script
+            )
             apiaddress = m.group(1)
 
             """Add IP Table rule
@@ -326,8 +331,10 @@
                     stdout, stderr = await self._run_configure_script(script)
                     break
                 except Exception as e:
-                    self.log.debug("Waiting for DNAT rules to be applied and saved, "
-                                   "sleeping {} seconds".format(delay))
+                    self.log.debug(
+                        "Waiting for DNAT rules to be applied and saved, "
+                        "sleeping {} seconds".format(delay)
+                    )
                     if attempts > retry:
                         raise e
                     else: