[raspbian] Fix isort and flake8 errors

Author: Ritwick DSouza

netjsonconfig/backends/raspbian/converters.py

@@ -154,9 +154,9 @@ class Ntp(BaseConverter):
     netjson_key = 'ntp'
 
     def to_intermediate(self):
-        result  = []
+        result = []
         ntp = get_copy(self.netjson, self.netjson_key)
-        if ntp.get('enabled', False) == True:
+        if ntp.get('enabled', False):
             for server in ntp.get('server'):
                 result.append(server)
         return (('ntp', result),)

tests/raspbian/test_system.py

@@ -3,6 +3,7 @@
 from netjsonconfig import Raspbian
 from netjsonconfig.utils import _TabsMixin
 
+
 class TestSystemRender(unittest.TestCase, _TabsMixin):
 
     def test_ntp(self):
@@ -25,3 +26,4 @@ def test_ntp(self):
 server 2.openwrt.pool.ntp.org
 server 3.openwrt.pool.ntp.org
 '''
+        self.assertEqual(o.render(), expected)