diff --git a/rwx/fs/__init__.py b/rwx/fs/__init__.py
index ecaebf0..2a6af2c 100644
--- a/rwx/fs/__init__.py
+++ b/rwx/fs/__init__.py
@@ -3,13 +3,13 @@ import shutil
 
 from rwx import ps
 
-CHARSET = 'UTF-8'
+CHARSET = "UTF-8"
 
 
 def create_image(file_path: str, size_bytes: int):
     ps.run(
-        ('qemu-img', 'create'),
-        ('-f', 'qcow2'),
+        ("qemu-img", "create"),
+        ("-f", "qcow2"),
         (file_path, size_bytes),
     )
 
@@ -20,17 +20,17 @@ def empty_file(path: str):
 
 def get_mount_uuid(path: str):
     return ps.run_line(
-        ('findmnt',),
-        ('--noheadings',),
-        ('--output', 'UUID'),
+        ("findmnt",),
+        ("--noheadings",),
+        ("--output", "UUID"),
         (path,),
     )
 
 
 def get_path_mount(path: str):
     return ps.run_line(
-        ('stat',),
-        ('--format', '%m'),
+        ("stat",),
+        ("--format", "%m"),
         (path,),
     )
 
@@ -44,7 +44,7 @@ def make_directory(path: str):
 
 
 def read_file(file_path: str):
-    with open(file_path, 'br') as file_object:
+    with open(file_path, "br") as file_object:
         return file_object.read()
 
 
@@ -66,5 +66,5 @@ def wipe(path: str):
 
 
 def write(file_path: str, text: str, charset=CHARSET):
-    with open(file_path, 'bw') as file_object:
+    with open(file_path, "bw") as file_object:
         file_object.write(text.encode(charset))