1 files changed, 2 insertions, 2 deletions
diff --git a/doc/summarize.py b/doc/summarize.py
index c8a23ebee..833436cee 100755
--- a/doc/summarize.py
+++ b/doc/summarize.py
@@ -149,8 +149,8 @@ def format_in_columns(lst, max_columns):
     Format a list containing strings to a string containing the items
     in columns.
     """
-    lst = map(str, lst)
-    col_len = max(map(len, lst)) + 2
+    lst = [str(_m) for _m in lst]
+    col_len = max([len(_m) for _m in lst]) + 2
     ncols = 80//col_len
     if ncols > max_columns:
         ncols = max_columns