diff --git a/ckanext/harvest/logic/action/delete.py b/ckanext/harvest/logic/action/delete.py
index cf22363..5b1842a 100644
--- a/ckanext/harvest/logic/action/delete.py
+++ b/ckanext/harvest/logic/action/delete.py
@@ -7,14 +7,12 @@ log = logging.getLogger(__name__)
 
 
 def harvest_source_delete(context, data_dict):
-    """
-    Deletes an existing harvest source
+    '''Deletes an existing harvest source.
 
     This method just proxies the request to package_delete,
     which will delete the actual harvest type dataset and the
     HarvestSource object (via the after_delete extension point).
-
-    """
+    '''
 
     log.info('Deleting harvest source: %r', data_dict)
 
diff --git a/ckanext/harvest/logic/action/update.py b/ckanext/harvest/logic/action/update.py
index 75d99d5..c1f260e 100644
--- a/ckanext/harvest/logic/action/update.py
+++ b/ckanext/harvest/logic/action/update.py
@@ -440,7 +440,7 @@ def harvest_sources_reindex(context, data_dict):
 
 @logic.side_effect_free
 def harvest_source_reindex(context, data_dict):
-    """Reindex a single harvest source."""
+    '''Reindex a single harvest source.'''
 
     harvest_source_id = logic.get_or_bust(data_dict, 'id')
     defer_commit = context.get('defer_commit', False)
diff --git a/ckanext/harvest/logic/validators.py b/ckanext/harvest/logic/validators.py
index aa5ca15..01e73ef 100644
--- a/ckanext/harvest/logic/validators.py
+++ b/ckanext/harvest/logic/validators.py
@@ -25,7 +25,8 @@ def harvest_source_id_exists(value, context):
 
 
 def harvest_job_exists(value, context):
-    """Check if a harvest job exists and returns the model if it does"""
+    '''Check if a harvest job exists and returns the model if it does'''
+
     result = HarvestJob.get(value, None)
 
     if not result:
@@ -60,10 +61,10 @@ def _normalize_url(url):
 
 
 def harvest_source_url_validator(key, data, errors, context):
-    """Validate the provided harvest source URL.
+    '''Validate the provided harvest source URL.
 
     Checks that the URL is not already existing with the same config.
-    """
+    '''
 
     package = context.get("package")