From b40a2dd0e08895c827eb936da6c8e8f5997cd51d 2016-01-27 16:38:31
From: Thomas Kluyver <thomas@kluyver.me.uk>
Date: 2016-01-27 16:38:31
Subject: [PATCH] Make behaviour more natural with blank lines at the end of input

---

diff --git a/IPython/terminal/ptshell.py b/IPython/terminal/ptshell.py
index 9f81418..58b2ad6 100644
--- a/IPython/terminal/ptshell.py
+++ b/IPython/terminal/ptshell.py
@@ -89,11 +89,13 @@ class PTInteractiveShell(InteractiveShell):
                                    ))
         def _(event):
             b = event.current_buffer
-            if not b.document.on_last_line:
+            d = b.document
+            if not (d.on_last_line or d.cursor_position_row >= d.line_count
+                                           - d.empty_line_count_at_the_end()):
                 b.newline()
                 return
 
-            status, indent = self.input_splitter.check_complete(b.document.text)
+            status, indent = self.input_splitter.check_complete(d.text)
 
             if (status != 'incomplete') and b.accept_action.is_returnable:
                 b.accept_action.validate_and_handle(event.cli, b)