diff --git a/DirectoryTree/show_dirs.py b/DirectoryTree/show_dirs.py
index abb73c6..3f87f21 100644
--- a/DirectoryTree/show_dirs.py
+++ b/DirectoryTree/show_dirs.py
@@ -1,4 +1,3 @@
-
 import os
 import sys
 
@@ -10,30 +9,32 @@
 
 for subdir, dirs, files in os.walk(path):
     dir_name = str(subdir).split("/")
-    dir_name = dir_name[len(dir_name)-1]
-    
+    dir_name = dir_name[len(dir_name) - 1]
+
     if len(main_folder) < 1:
-        main_folder = dir_name 
+        main_folder = dir_name
     folders_and_files = []
 
     for dir_ in dirs:
         folders_and_files.append(dir_)
     for file_ in files:
         folders_and_files.append(file_)
-    
+
     folders[dir_name] = folders_and_files
 
 final_list = []
 
+
 def recursive_tree(folder, num):
     files = ""
     num = num + "-"
     try:
         files = folders[folder]
-        return go_through_list(files, len(files)-1, num)
+        return go_through_list(files, len(files) - 1, num)
     except:
         Exception()
 
+
 def go_through_list(list_, index, num):
     if len(num) == 2:
         final_list.append(str(list_[index]))
@@ -41,12 +42,13 @@ def go_through_list(list_, index, num):
         final_list.append(num + " " + str(list_[index]))
     if index == 0:
         recursive_tree(list_[index], num)
-        return 
+        return
     else:
         recursive_tree(list_[index], num)
-        return go_through_list(list_, index - 1, num)    
+        return go_through_list(list_, index - 1, num)
+
 
 recursive_tree(main_folder, " ")
 
 for item in final_list:
-    print(item) 
+    print(item)