skip notebook integration tests if ipykernel not installed

Author: jbweston

adaptive/tests/test_notebook_integration.py

@@ -1,7 +1,15 @@
-import ipykernel.iostream
-import zmq
+import pytest
 
+try:
+    import ipykernel.iostream
+    import zmq
 
+    with_notebook_dependencies = True
+except ImportError:
+    with_notebook_dependencies = False
+
+
+@pytest.mark.skipif(not with_notebook_dependencies)
 def test_private_api_used_in_live_info():
     """We are catching all errors in
     adaptive.notebook_integration.should_update

tox.ini

@@ -65,4 +65,4 @@ include_trailing_comma=True
 force_grid_wrap=0
 use_parentheses=True
 line_length=88
-known_third_party=PIL,atomicwrites,holoviews,ipykernel,matplotlib,nbconvert,numpy,pytest,scipy,setuptools,skopt,sortedcollections,sortedcontainers,zmq
+known_third_party=PIL,atomicwrites,holoviews,matplotlib,nbconvert,numpy,pytest,scipy,setuptools,skopt,sortedcollections,sortedcontainers