Yet another PEP 8 :)

gns3server/old_modules/dynamips/nios/nio_null.py

@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Interface for dummy NIOs (mostly for tests).
+"""
+
+from .nio import NIO
+
+import logging
+log = logging.getLogger(__name__)
+
+
+class NIO_Null(NIO):
+
+    """
+    Dynamips NULL NIO.
+
+    :param hypervisor: Dynamips hypervisor instance
+    """
+
+    _instance_count = 0
+
+    def __init__(self, hypervisor):
+
+        NIO.__init__(self, hypervisor)
+
+        # create an unique ID
+        self._id = NIO_Null._instance_count
+        NIO_Null._instance_count += 1
+        self._name = 'nio_null' + str(self._id)
+
+        self._hypervisor.send("nio create_null {}".format(self._name))
+        log.info("NIO NULL {name} created.".format(name=self._name))
+
+    @classmethod
+    def reset(cls):
+        """
+        Reset the instance count.
+        """
+
+        cls._instance_count = 0