diff --git a/lab-data/debugging/nfsroot/root/gdb/linked_list.py b/lab-data/debugging/nfsroot/root/gdb/linked_list.py
index f0ba5d7659..24db18d949 100644
--- a/lab-data/debugging/nfsroot/root/gdb/linked_list.py
+++ b/lab-data/debugging/nfsroot/root/gdb/linked_list.py
@@ -1,38 +1,42 @@
 import gdb
 
+
 class StructNamePrinter:
-	"Print a struct name"
+    "Print a struct name"
+
+    def __init__(self, val):
+        self.val = val
 
-	def __init__(self, val):
-		self.val = val
+    def to_string(self):
+        return "TODO"
 
-	def to_string(self):
-		return "TODO"
 
 def struct_name_lookup_function(val):
-	if str(val.type) == 'struct name':
-		return StructNamePrinter(val)
+    if str(val.type) == 'struct name':
+        return StructNamePrinter(val)
+
+    return None
 
-	return None
 
 gdb.pretty_printers.append(struct_name_lookup_function)
 
+
 class PrintSList (gdb.Command):
-	def __init__(self):
-		super(PrintSList, self).__init__("printslist", gdb.COMMAND_USER)
+    def __init__(self):
+        super(PrintSList, self).__init__("printslist", gdb.COMMAND_USER)
 
-	def invoke(self, arg, from_tty):
-		args = gdb.string_to_argv(arg)
-		if len(args) < 2:
-			print("Usage: printslist <list head> <next field name>")
-			return
+    def invoke(self, arg, from_tty):
+        args = gdb.string_to_argv(arg)
+        if len(args) < 2:
+            print("Usage: printslist <list head> <next field name>")
+            return
 
-		list = gdb.parse_and_eval(args[0])
-		next_field = args[1]
-		elem = list['slh_first']
-		while elem != 0:
-			print(elem.dereference())
-			elem = TODO
+        list = gdb.parse_and_eval(args[0])
+        next_field = args[1]
+        elem = list['slh_first']
+        while elem != 0:
+            print(elem.dereference())
+            elem = TODO
 
 
-PrintSList()
\ No newline at end of file
+PrintSList()