diff --git a/tools/package_list.py b/tools/package_list.py
index a3171ba..56f760e 100644
--- a/tools/package_list.py
+++ b/tools/package_list.py
@@ -1,13 +1,15 @@
 import requests
 
 
-res = requests.get('https://raw.githubusercontent.com/brain-hackers/buildbrain/master/os-brainux/setup_brainux.sh')
+res = requests.get(
+    'https://raw.githubusercontent.com/brain-hackers/buildbrain/master/os-brainux/setup_brainux.sh'
+)
 lines = res.text.split('\n')
 
 found_packages = []
 backslashed = False
 
-for (i,line) in enumerate(lines):       
+for (i, line) in enumerate(lines):
     if line.strip().startswith('apt install') or backslashed:
         if backslashed:
             packages = line.strip().split(' ')
@@ -21,4 +23,4 @@ for (i,line) in enumerate(lines):
 
 print('|パッケージ名|')
 print('|:-|')
-print('\n'.join(f'|{p}|' for p in found_packages))
\ No newline at end of file
+print('\n'.join(f'|{p}|' for p in found_packages))