pppoe-server: migrators: fix python style

1 files changed, 34 insertions, 24 deletions

diff --git a/src/migration-scripts/pppoe-server/1-to-2 b/src/migration-scripts/pppoe-server/1-to-2
index fa83896d3..7cae3b5bc 100755
--- a/src/migration-scripts/pppoe-server/1-to-2
+++ b/src/migration-scripts/pppoe-server/1-to-2
@@ -1,18 +1,29 @@
 #!/usr/bin/env python3
-
-# Convert "service pppoe-server interface ethX"
-# to:
-# "service pppoe-server interface ethX {}"
-
-import sys
-
+#
+# Copyright (C) 2020 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# 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/>.
+
+# Convert "service pppoe-server interface ethX" to: "service pppoe-server interface ethX {}"
+
+from sys import argv, exit
 from vyos.configtree import ConfigTree
 
-if (len(sys.argv) < 1):
+if (len(argv) < 1):
     print("Must specify file name!")
-    sys.exit(1)
+    exit(1)
 
-file_name = sys.argv[1]
+file_name = argv[1]
 
 with open(file_name, 'r') as f:
     config_file = f.read()
@@ -21,18 +32,17 @@ ctree = ConfigTree(config_file)
 cbase = ['service', 'pppoe-server','interface']
 
 if not ctree.exists(cbase):
-  sys.exit(0)
+    exit(0)
 else:
-  nics = ctree.return_values(cbase)
-  # convert leafNode to a tagNode
-  ctree.set(cbase)
-  ctree.set_tag(cbase)
-  for nic in nics:
-    ctree.set(cbase + [nic])
-
-  try:
-    open(file_name,'w').write(ctree.to_string())
-  except OSError as e:
-    print("Failed to save the modified config: {}".format(e))
-    sys.exit(1)
-
+    nics = ctree.return_values(cbase)
+    # convert leafNode to a tagNode
+    ctree.set(cbase)
+    ctree.set_tag(cbase)
+    for nic in nics:
+        ctree.set(cbase + [nic])
+
+    try:
+        open(file_name,'w').write(ctree.to_string())
+    except OSError as e:
+        print("Failed to save the modified config: {}".format(e))
+        exit(1)