diff --git a/plotly/io/_renderers.py b/plotly/io/_renderers.py
index 9ddd1db5dd..4c21760bb0 100644
--- a/plotly/io/_renderers.py
+++ b/plotly/io/_renderers.py
@@ -485,7 +485,7 @@ def show(fig, renderer=None, validate=True, **kwargs):
)
default_renderer = env_renderer
-elif ipython:
+elif ipython and ipython.get_ipython():
# Try to detect environment so that we can enable a useful
# default renderer
if not default_renderer:
diff --git a/tests/test_io/test_renderers.py b/tests/test_io/test_renderers.py
index 4860c738a0..43dd250d8b 100644
--- a/tests/test_io/test_renderers.py
+++ b/tests/test_io/test_renderers.py
@@ -33,6 +33,13 @@ def fig1(request):
)
+def test_default_renderer():
+ """
+ The default renderer should be 'browser'.
+ """
+ assert pio.renderers.default == "browser"
+
+
# JSON
# ----
def test_json_renderer_mimetype(fig1):
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