A few tweaks based on landscape.io. feedback.

@@ -92,15 +92,16 @@ class Context(object):
     def _create_event_sources(self):
         for event_source_cfg in self.config['lambda']['event_sources']:
             _, _, svc, _ = event_source_cfg['arn'].split(':', 3)
-        if svc == 'kinesis':
-            self.event_sources.append(kappa.event_source.KinesisEventSource(
-                self, event_source_cfg))
-        elif svc == 's3':
-            self.event_sources.append(kappa.event_source.S3EventSource(
-                self, event_source_cfg))
-        else:
-            msg = 'Unsupported event source: %s' % event_source_cfg['arn']
-            raise ValueError(msg)
+            if svc == 'kinesis':
+                self.event_sources.append(
+                    kappa.event_source.KinesisEventSource(
+                        self, event_source_cfg))
+            elif svc == 's3':
+                self.event_sources.append(kappa.event_source.S3EventSource(
+                    self, event_source_cfg))
+            else:
+                msg = 'Unsupported event source: %s' % event_source_cfg['arn']
+                raise ValueError(msg)
 
     def add_event_sources(self):
         for event_source in self.event_sources:

@@ -80,7 +80,7 @@ class Function(object):
                 LOG.debug(response)
                 self._arn = response['FunctionARN']
             except Exception:
-                LOG.debug('Unable to find ARN for function: %s' % self.name)
+                LOG.debug('Unable to find ARN for function: %s', self.name)
         return self._arn
 
     @property
@@ -101,12 +101,12 @@ class Function(object):
         with zipfile.ZipFile(zipfile_name, 'w') as zf:
             for root, dirs, files in os.walk(lambda_dir):
                 zf.write(root, os.path.relpath(root, relroot))
-                for file in files:
-                    filename = os.path.join(root, file)
-                    if os.path.isfile(filename):
+                for filename in files:
+                    filepath = os.path.join(root, filename)
+                    if os.path.isfile(filepath):
                         arcname = os.path.join(
-                            os.path.relpath(root, relroot), file)
-                        zf.write(filename, arcname)
+                            os.path.relpath(root, relroot), filename)
+                        zf.write(filepath, arcname)
 
     def _zip_lambda_file(self, zipfile_name, lambda_file):
         LOG.debug('_zip_lambda_file: lambda_file=%s', lambda_file)