From ae961ecb0452359ec5ff8881769daae0ae6e3847 2019-11-12 02:38:24
From: Matthias Bussonnier <bussonniermatthias@gmail.com>
Date: 2019-11-12 02:38:24
Subject: [PATCH] Merge pull request #11905 from jorisvandenbossche/fix-directive-truncate

IPython directive: correctly clear cout
---

diff --git a/IPython/sphinxext/ipython_directive.py b/IPython/sphinxext/ipython_directive.py
index 60c1b51..0481624 100644
--- a/IPython/sphinxext/ipython_directive.py
+++ b/IPython/sphinxext/ipython_directive.py
@@ -585,7 +585,7 @@ class EmbeddedSphinxShell(object):
                 if self.warning_is_error:
                     raise RuntimeError('Non Expected warning in `{}` line {}'.format(filename, lineno))
 
-        self.cout.truncate(0)
+        self.clear_cout()
         return (ret, input_lines, processed_output,
                 is_doctest, decorator, image_file, image_directive)