From 4aeedd32b06a524f062c2d2bdb1f4ff5265b125b 2021-08-18 23:48:23
From: Matthias Bussonnier <bussonniermatthias@gmail.com>
Date: 2021-08-18 23:48:23
Subject: [PATCH] == None to is None

---

diff --git a/IPython/core/tests/test_formatters.py b/IPython/core/tests/test_formatters.py
index efd6bf8..15ce8df 100644
--- a/IPython/core/tests/test_formatters.py
+++ b/IPython/core/tests/test_formatters.py
@@ -352,7 +352,7 @@ def test_print_method_weird():
     with capture_output() as captured:
         result = f(call_hat)
 
-    assert result == None
+    assert result is None
 
     class BadReprArgs(object):
         def _repr_html_(self, extra, args):
diff --git a/IPython/lib/tests/test_latextools.py b/IPython/lib/tests/test_latextools.py
index 794688c..fafff73 100644
--- a/IPython/lib/tests/test_latextools.py
+++ b/IPython/lib/tests/test_latextools.py
@@ -25,7 +25,7 @@ def test_check_latex_to_png_dvipng_fails_when_no_cmd(command):
             raise FindCmdError
 
     with patch.object(latextools, "find_cmd", mock_find_cmd):
-        assert latextools.latex_to_png_dvipng("whatever", True) == None
+        assert latextools.latex_to_png_dvipng("whatever", True) is None
 
 
 @contextmanager