diff --git a/rwx/__main__.py b/rwx/__main__.py
index 0f15b2e..a857803 100755
--- a/rwx/__main__.py
+++ b/rwx/__main__.py
@@ -4,7 +4,6 @@ import os
 
 import fs
 
-
 if __name__ == "__main__":
     file_path = os.path.realpath(__file__)
     root_path = os.path.dirname(file_path)
diff --git a/rwx/cmd/__init__.py b/rwx/cmd/__init__.py
index 6ecb47c..de764fa 100644
--- a/rwx/cmd/__init__.py
+++ b/rwx/cmd/__init__.py
@@ -10,6 +10,5 @@ def need(command: str) -> None:
             package = "squashfs-tools"
         case _:
             package = None
-    if package:
-        if package not in packages:
-            packages.append(package)
+    if package and package not in packages:
+        packages.append(package)
diff --git a/rwx/cmd/squashfs/__init__.py b/rwx/cmd/squashfs/__init__.py
index 4f793ca..343461e 100644
--- a/rwx/cmd/squashfs/__init__.py
+++ b/rwx/cmd/squashfs/__init__.py
@@ -1,4 +1,5 @@
 import ps
+
 import rwx.cmd
 
 rwx.cmd.need("mksquashfs")
diff --git a/rwx/deb/__init__.py b/rwx/deb/__init__.py
index bfb8a2f..e9c6a9e 100644
--- a/rwx/deb/__init__.py
+++ b/rwx/deb/__init__.py
@@ -1,4 +1,5 @@
 import cmd
+
 import ps
 
 cmd.need("debootstrap")
diff --git a/rwx/grub/__init__.py b/rwx/grub/__init__.py
index 7690a49..57e313c 100644
--- a/rwx/grub/__init__.py
+++ b/rwx/grub/__init__.py
@@ -1,4 +1,5 @@
 import cmd
+
 import ps
 
 cmd.need("grub-mkimage")
diff --git a/rwx/log/__init__.py b/rwx/log/__init__.py
index a567492..3502ab5 100644
--- a/rwx/log/__init__.py
+++ b/rwx/log/__init__.py
@@ -1,5 +1,7 @@
 import logging
 import sys
+
+
 def get_file_logger(name: str) -> logging.Logger:
     formatter = logging.Formatter(
         "%(name)s: %(asctime)s | %(levelname)s | %(filename)s:%(lineno)s | %(process)d >>> %(message)s",
diff --git a/rwx/prj/sphinx.py b/rwx/prj/sphinx.py
index a71bc35..ccb8d0f 100644
--- a/rwx/prj/sphinx.py
+++ b/rwx/prj/sphinx.py
@@ -1,4 +1,5 @@
 from os import path
+
 from sphinx.cmd.build import build_main
 
 from rwx.fs import wipe