Mock absent webbrowser module

Author: bartbroere

packages/python/plotly/plotly/tests/test_io/test_renderers.py

@@ -388,12 +388,8 @@ def test_missing_webbrowser_module(fig1):
     """
     Assert that no errors occur if the webbrowser module is absent
     """
-    removed_webbrowser_module = sys.modules["webbrowser"]
-    del sys.modules["webbrowser"]
-    fig1._repr_html_()
-    sys.modules[
-        "webbrowser"
-    ] = removed_webbrowser_module  # restore everything after this test
+    with mock.patch("builtins.__import__", side_effect=ImportError):
+        fig1._repr_html_()
 
 
 def test_missing_webbrowser_methods(fig1):