Address a number of pylint issues

1 files changed, 6 insertions, 3 deletions

diff --git a/web-server/opendc/util/parameter_checker.py b/web-server/opendc/util/parameter_checker.py
index f55e780e..d37256e0 100644
--- a/web-server/opendc/util/parameter_checker.py
+++ b/web-server/opendc/util/parameter_checker.py
@@ -1,4 +1,5 @@
-from opendc.util import database, exceptions
+from opendc.util import exceptions
+from opendc.util.database import Database
 
 
 def _missing_parameter(params_required, params_actual, parent=''):
@@ -41,7 +42,7 @@ def _incorrect_parameter(params_required, params_actual, parent=''):
 
             if param_required == 'datetime':
                 try:
-                    database.string_to_datetime(param_actual)
+                    Database.string_to_datetime(param_actual)
                 except:
                     return '{}.{}'.format(parent, param_name)
 
@@ -54,6 +55,8 @@ def _incorrect_parameter(params_required, params_actual, parent=''):
             if param_required.startswith('list') and not isinstance(param_actual, list):
                 return '{}.{}'.format(parent, param_name)
 
+    return None
+
 
 def _format_parameter(parameter):
     """Format the output of a parameter check."""
@@ -64,7 +67,7 @@ def _format_parameter(parameter):
 
 
 def check(request, **kwargs):
-    """Return True if all required parameters are there."""
+    """Check if all required parameters are there."""
 
     for location, params_required in kwargs.items():
         params_actual = getattr(request, 'params_{}'.format(location))