diff --git a/ymd/main.py b/ymd/main.py
index b6e0436..33d6d97 100644
--- a/ymd/main.py
+++ b/ymd/main.py
@@ -10,14 +10,14 @@ def parse_item(item, h):
     item_type = type(item)
     if item_type is list:
         if len(item) == 1:
-            return parse_item(item[0], h+1)
+            return parse_item(item[0], h + 1)
         if len(item) == 0:
             return ''
-        return parse_item('\n'.join(['- ' + str(sub_item) for sub_item in item]), h+1)
+        return parse_item('\n'.join(['- ' + str(sub_item) for sub_item in item]), h + 1)
     if item_type is dict:
         return {
-            "<h{0}>{1}</h{0}>".format(h, key): parse_item(value, h+1) for key, value in item.items()
-            }
+            "<h{0}>{1}</h{0}>".format(h, key): parse_item(value, h + 1) for key, value in item.items()
+        }
     if item_type in [int, float]:
         return item
     return markdown.markdown(str(item))