diff --git a/org_rw/dom.py b/org_rw/dom.py
index 61e0882..baf0092 100644
--- a/org_rw/dom.py
+++ b/org_rw/dom.py
@@ -83,7 +83,6 @@ class TableRow:
         return get_raw_contents(self.orig)
 
 
-
 class Text:
     def __init__(self, content):
         self.content = content
diff --git a/org_rw/org_rw.py b/org_rw/org_rw.py
index f26ef94..6baadd1 100644
--- a/org_rw/org_rw.py
+++ b/org_rw/org_rw.py
@@ -641,9 +641,9 @@ class Headline:
                     # TODO: Allow indentation of these blocks inside others
                     indentation_tree = [current_node]
                     tree.append(current_node)
-                elif content.strip().startswith(':') and content.strip().endswith(':'):
+                elif content.strip().startswith(":") and content.strip().endswith(":"):
                     assert current_node is None
-                    current_node = dom.GenericDrawerNode(content.strip().strip(':'))
+                    current_node = dom.GenericDrawerNode(content.strip().strip(":"))
 
                     # TODO: Allow indentation of these blocks inside others
                     indentation_tree = [current_node]
@@ -887,7 +887,7 @@ class Headline:
 
         for line in everything:
             if start <= line.linenum < end:
-                if 'get_raw' in dir(line):
+                if "get_raw" in dir(line):
                     yield "".join(line.get_raw())
                 else:
                     yield line.line
diff --git a/org_rw/utils.py b/org_rw/utils.py
index 146a942..87f6712 100644
--- a/org_rw/utils.py
+++ b/org_rw/utils.py
@@ -7,9 +7,9 @@ from .org_rw import (
     Italic,
     Line,
     ListItem,
-    TableRow,
     RawLine,
     Strike,
+    TableRow,
     Text,
     Underlined,
     Verbatim,