Unindent after 'pass'.

Author: jonathanslenders

ptpython/key_bindings.py

@@ -215,8 +215,13 @@ def auto_newline(buffer):
         current_line = buffer.document.current_line_before_cursor.rstrip()
         insert_text('\n')
 
+        # Unident if the last line ends with 'pass', remove four spaces.
+        unindent = current_line.rstrip().endswith(' pass')
+
         # Copy whitespace from current line
-        for c in current_line:
+        current_line2 = current_line[4:] if unindent else current_line
+
+        for c in current_line2:
             if c.isspace():
                 insert_text(c)
             else: