diff --git a/Doc/tutorial/stdlib.rst b/Doc/tutorial/stdlib.rst
index d90dc51c719275..227a6d8651ff57 100644
--- a/Doc/tutorial/stdlib.rst
+++ b/Doc/tutorial/stdlib.rst
@@ -78,8 +78,9 @@ and an optional number of lines to be displayed::
 
     import argparse
 
-    parser = argparse.ArgumentParser(prog = 'top',
-        description = 'Show top lines from each file')
+    parser = argparse.ArgumentParser(
+        prog='top',
+        description='Show top lines from each file')
     parser.add_argument('filenames', nargs='+')
     parser.add_argument('-l', '--lines', type=int, default=10)
     args = parser.parse_args()