--- a/sat/bridge/bridge_constructor/constructors/pb/constructor.py	Wed Jun 27 07:51:29 2018 +0200
+++ b/sat/bridge/bridge_constructor/constructors/pb/constructor.py	Wed Jun 27 20:14:46 2018 +0200
@@ -1,5 +1,5 @@
 #!/usr/bin/env python2
-#-*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 
 # SàT: a XMPP client
 # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
@@ -25,32 +25,42 @@
     CORE_TEMPLATE = "pb_core_template.py"
     CORE_DEST = "pb.py"
     CORE_FORMATS = {
-        'signals': """\
+        "signals": """\
     def {name}(self, {args}):
-        {debug}self.sendSignal("{name}", {args_no_def})\n""",
-        }
+        {debug}self.sendSignal("{name}", {args_no_def})\n"""
+    }
 
     FRONTEND_TEMPLATE = "pb_frontend_template.py"
     FRONTEND_DEST = CORE_DEST
     FRONTEND_FORMATS = {
-        'methods': """\
+        "methods": """\
     def {name}(self{args_comma}{args}, callback=None, errback=None):
         {debug}d = self.root.callRemote("{name}"{args_comma}{args_no_def})
         if callback is not None:
             d.addCallback({callback})
         if errback is None:
             errback = self._generic_errback
-        d.addErrback(errback)\n""",
-        }
+        d.addErrback(errback)\n"""
+    }
 
     def core_completion_signal(self, completion, function, default, arg_doc, async_):
-        completion['args_no_def'] = self.getArguments(function['sig_in'], name=arg_doc)
-        completion['debug'] = "" if not self.args.debug else 'log.debug ("%s")\n%s' % (completion['name'], 8 * ' ')
+        completion["args_no_def"] = self.getArguments(function["sig_in"], name=arg_doc)
+        completion["debug"] = (
+            ""
+            if not self.args.debug
+            else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " ")
+        )
 
     def frontend_completion_method(self, completion, function, default, arg_doc, async_):
-        completion.update({
-            'args_comma': ', ' if function['sig_in'] else '',
-            'args_no_def': self.getArguments(function['sig_in'], name=arg_doc),
-            'callback': 'callback' if function['sig_out'] else 'lambda dummy: callback()',
-            'debug': "" if not self.args.debug else 'log.debug ("%s")\n%s' % (completion['name'], 8 * ' '),
-            })
+        completion.update(
+            {
+                "args_comma": ", " if function["sig_in"] else "",
+                "args_no_def": self.getArguments(function["sig_in"], name=arg_doc),
+                "callback": "callback"
+                if function["sig_out"]
+                else "lambda dummy: callback()",
+                "debug": ""
+                if not self.args.debug
+                else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "),
+            }
+        )