diff --git a/oml/node/server.py b/oml/node/server.py
index ef40ad3..f959a6b 100644
--- a/oml/node/server.py
+++ b/oml/node/server.py
@@ -54,7 +54,7 @@ class TLSTCPServer(socketserver.TCPServer):
     def __init__(self, server_address, HandlerClass, bind_and_activate=True):
         socketserver.TCPServer.__init__(self, server_address, HandlerClass)
         ctx = Context(TLSv1_2_METHOD)
-        ctx.use_privatekey_file (settings.ssl_key_path)
+        ctx.use_privatekey_file(settings.ssl_key_path)
         ctx.use_certificate_file(settings.ssl_cert_path)
         # only allow clients with cert:
         ctx.set_verify(VERIFY_PEER | VERIFY_CLIENT_ONCE | VERIFY_FAIL_IF_NO_PEER_CERT, self._accept)
@@ -64,7 +64,7 @@ class TLSTCPServer(socketserver.TCPServer):
             self.server_bind()
             self.server_activate()
 
-    def shutdown_request(self,request):
+    def shutdown_request(self, request):
         try:
             request.shutdown()
         except:
@@ -90,7 +90,7 @@ def api_call(action, user_id, args):
         else:
             if u and u.pending:
                 logger.debug('ignore request from pending peer[%s] %s (%s)',
-                    user_id, action, args)
+                             user_id, action, args)
                 content = {}
             else:
                 content = None
@@ -109,7 +109,7 @@ class Handler(http.server.SimpleHTTPRequestHandler):
     def log_message(self, format, *args):
         if settings.DEBUG_HTTP:
             logger.debug("%s - - [%s] %s\n", self.address_string(),
-                         self.log_date_time_string(), format%args)
+                         self.log_date_time_string(), format % args)
 
     def do_HEAD(self):
         return self.do_GET()
@@ -117,7 +117,7 @@ class Handler(http.server.SimpleHTTPRequestHandler):
     def do_GET(self):
         import item.models
         parts = self.path.split('/')
-        if len(parts) ==  3 and parts[1] in ('get', 'preview'):
+        if len(parts) == 3 and parts[1] in ('get', 'preview'):
             id = parts[2]
             preview = parts[1] == 'preview'
         else:
@@ -231,7 +231,7 @@ class Handler(http.server.SimpleHTTPRequestHandler):
             state.update_required = True
         if self.headers.get('X-Node-Protocol', '') != settings.NODE_PROTOCOL:
             logger.debug('protocol missmatch %s vs %s',
-                self.headers.get('X-Node-Protocol', ''), settings.NODE_PROTOCOL)
+                         self.headers.get('X-Node-Protocol', ''), settings.NODE_PROTOCOL)
             logger.debug('headers %s', self.headers)
             content = settings.release
         else: