Remove version pins

Author: trungleduc

setup.cfg

@@ -50,7 +50,7 @@ dev =
 test =
     numpy
     pandas
-    ipywidgets<8
+    ipywidgets
     matplotlib
     mock
     pytest

tests/execute_output_test.py

@@ -25,7 +25,13 @@ def normalize_output(output):
     if 'traceback' in output:
         del output['traceback']
     if 'application/vnd.jupyter.widget-view+json' in output.get('data', {}):
-        output['data']['application/vnd.jupyter.widget-view+json']['model_id'] = '<MODEL_ID>'
+        output['data']['application/vnd.jupyter.widget-view+json'][
+            'model_id'
+        ] = '<MODEL_ID>'
+        # 'output_type' for widgets is changed from 'display_data' to 'execute_result'
+        # in ipywidgets 8
+        if output['output_type'] == 'display_data':
+            output['output_type'] = 'execute_result'
 
 
 def normalize_outputs(outputs):
@@ -34,24 +40,31 @@ def normalize_outputs(outputs):
 
 
 def test_execute_output():
-    path = os.path.join(BASE_DIR, "notebooks/output.ipynb")
+    path = os.path.join(BASE_DIR, 'notebooks/output.ipynb')
     nb = read(path, NO_CONVERT)
     nb_voila = deepcopy(nb)
     executenb(nb_voila)
 
     widget_states = nb.metadata.widgets[WIDGET_MIME_TYPE_STATE]['state']
-    widget_states_voila = nb_voila.metadata.widgets[WIDGET_MIME_TYPE_STATE]['state']
+    widget_states_voila = nb_voila.metadata.widgets[WIDGET_MIME_TYPE_STATE][
+        'state'
+    ]
 
     for cell_voila, cell in zip(nb_voila.cells, nb.cells):
         for output_voila, output in zip(cell_voila.outputs, cell.outputs):
             if 'data' in output and WIDGET_MIME_TYPE_VIEW in output['data']:
                 widget_id = output['data'][WIDGET_MIME_TYPE_VIEW]['model_id']
-                widget_id_voila = output_voila['data'][WIDGET_MIME_TYPE_VIEW]['model_id']
+                widget_id_voila = output_voila['data'][WIDGET_MIME_TYPE_VIEW][
+                    'model_id'
+                ]
                 widget_state = widget_states[widget_id]
                 widget_state_voila = widget_states_voila[widget_id_voila]
                 # if the widget is an output widget, it has the outputs, which we also check
-                assert normalize_outputs(widget_state.state.get('outputs', [])) ==\
-                    normalize_outputs(widget_state_voila.state.get('outputs', []))
+                assert normalize_outputs(
+                    widget_state.state.get('outputs', [])
+                ) == normalize_outputs(
+                    widget_state_voila.state.get('outputs', [])
+                )
             normalize_output(output_voila)
             normalize_output(output)
             assert output_voila == output