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venv/lib/python3.9/site-packages/ipywidgets/comm.py

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+# compatibility shim for ipykernel < 6.18
+import sys
+from IPython import get_ipython
+import comm
+
+
+def requires_ipykernel_shim():
+    if "ipykernel" in sys.modules:
+        import ipykernel
+
+        version = ipykernel.version_info
+        return version < (6, 18)
+    else:
+        return False
+
+
+def get_comm_manager():
+    if requires_ipykernel_shim():
+        ip = get_ipython()
+
+        if ip is not None and getattr(ip, "kernel", None) is not None:
+            return get_ipython().kernel.comm_manager
+    else:
+        return comm.get_comm_manager()
+
+
+def create_comm(*args, **kwargs):
+    if requires_ipykernel_shim():
+        from ipykernel.comm import Comm
+
+        return Comm(*args, **kwargs)
+    else:
+        return comm.create_comm(*args, **kwargs)