Changes to address phrasing and comment to explain flake8 ignore W504

.flake8

@@ -1,5 +1,8 @@
 [flake8]
 # E722 - do not use bare 'except'
+# W504 - Either W503 (Line break after Operand) or W503 (
+# Line break before operand needs to be ignored for line lengths
+# greater than max-line-length. Best practice shows W504
 ignore = E722, W504
 exclude = optimizely/lib/pymmh3.py,*virtualenv*
 max-line-length = 120

optimizely/project_config.py

@@ -568,7 +568,7 @@ def is_feature_experiment(self, experiment_id):
         return experiment_id in self.experiment_feature_map
 
     def get_variation_from_id_by_experiment_id(self, experiment_id, variation_id):
-        """ Gets experiment id and variation id
+        """ Gets variation from variation id and specific experiment id
 
             Returns:
                 The variation for the experiment id and variation id
@@ -584,7 +584,7 @@ def get_variation_from_id_by_experiment_id(self, experiment_id, variation_id):
         return {}
 
     def get_variation_from_key_by_experiment_id(self, experiment_id, variation_key):
-        """ Gets experiment id and variation key
+        """ Gets variation from variation key and specific experiment id
 
             Returns:
                 The variation for the experiment id and variation key