abort reevuate session if file is blank

thomasballinger · thomasballinger · commit c7f22dc2a01e · 2015-12-13T14:06:44.000-05:00
diff --git a/bpython/curtsiesfrontend/repl.py b/bpython/curtsiesfrontend/repl.py
@@ -862,6 +862,10 @@ def send_session_to_external_editor(self, filename=None):
         else:
             current_line = ''
         from_editor = [line for line in lines if line[:3] != '###']
+        if all(not line.strip() for line in from_editor):
+            self.status_bar.message(
+                _('Session not reevaluated because saved file was blank'))
+            return
 
         source = preprocess('\n'.join(from_editor), self.interp.compile)
         lines = source.split('\n')
