From 46b8f96712f0cd5c2c26abedfdf44eebac6fe89c Mon Sep 17 00:00:00 2001
From: Qwlouse <qwlouse@gmail.com>
Date: Fri, 1 Apr 2016 23:04:34 +0200
Subject: [PATCH] improved error-message when using @ex.automain in interactive
 mode

---
 sacred/experiment.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sacred/experiment.py b/sacred/experiment.py
index 974f1ed1..4a8e480f 100644
--- a/sacred/experiment.py
+++ b/sacred/experiment.py
@@ -85,6 +85,15 @@ def my_main():
         """
         captured = self.main(function)
         if function.__module__ == '__main__':
+            # Ensure that automain is not used in interactive mode.
+            import inspect
+            main_filename = inspect.getfile(function)
+            if (main_filename == '<stdin>' or
+                    (main_filename.startswith('<ipython-input-') and
+                     main_filename.endswith('>'))):
+                raise RuntimeError('Cannot use @ex.automain decorator in '
+                                   'interactive mode. Use @ex.main instead.')
+
             self.run_commandline()
         return captured