handle from ptshell side

IPython/core/inputsplitter.py

@@ -631,10 +631,6 class IPythonInputSplitter(InputSplitter):
         if not lines_list:
             lines_list = ['']
 
-        # interpet trailing newline as a blank line
-        if lines.endswith('\n'):
-            lines_list += ['']
-
         # Store raw source before applying any transformations to it.  Note
         # that this must be done *after* the reset() call that would otherwise
         # flush the buffer.

IPython/terminal/ptshell.py

@@ -195,7 +195,7 class TerminalInteractiveShell(InteractiveShell):
                 b.newline()
                 return
 
-            status, indent = self.input_splitter.check_complete(d.text)
+            status, indent = self.input_splitter.check_complete(d.text + '\n')
 
             if (status != 'incomplete') and b.accept_action.is_returnable:
                 b.accept_action.validate_and_handle(event.cli, b)