diff --git a/lms/www/batch/learn.py b/lms/www/batch/learn.py
index a3b9566c..d51751ac 100644
--- a/lms/www/batch/learn.py
+++ b/lms/www/batch/learn.py
@@ -108,9 +108,9 @@ def get_page_extensions(context):
 
 def get_neighbours(current, lessons):
 	numbers = [lesson.number for lesson in lessons]
-	tuples_list = [tuple(map(int, s.split("."))) for s in numbers]  # noqa
+	tuples_list = [tuple(int(x) for x in s.split(".")) for s in numbers]
 	sorted_tuples = sorted(tuples_list)
-	sorted_numbers = [".".join(map(str, t)) for t in sorted_tuples]  # noqa
+	sorted_numbers = [".".join(str(num) for num in t) for t in sorted_tuples]
 	index = sorted_numbers.index(current)
 
 	return {