Work around jupyter/nbclient#85

khaeru · Sep 15, 2020 · a57e16e · a57e16e
1 parent cd4a337
commit a57e16e
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/ixmp/testing.py b/ixmp/testing.py
@@ -359,6 +359,15 @@ def run_notebook(nb_path, tmp_path, env=None, kernel=None, allow_errors=False):
     import nbformat
     from nbclient import NotebookClient
 
+    # Workaround for https://github.com/jupyter/nbclient/issues/85
+    if (
+        sys.version_info[0] == 3
+        and sys.version_info[1] >= 8
+        and sys.platform.startswith("win")
+    ):
+        import asyncio
+        asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+
     # Read the notebook
     with open(nb_path) as f:
         nb = nbformat.read(f, as_version=4)