Add Web Voyager

examples/web-navigation/asyncio_nb_utils.py

@@ -0,0 +1,28 @@
+import asyncio
+
+import nest_asyncio
+
+def apply():
+    nest_asyncio.apply()
+
+    # shorthand for the class whose __del__ raises the exception
+    _BEL = asyncio.base_events.BaseEventLoop
+    _UWP = getattr(asyncio.unix_events, "_UnixWritePipeTransport", None)
+    _TAS = asyncio.tasks.Task
+
+    _original_del = _BEL.__del__
+
+    def _patched_del(self):
+        try:
+            # invoke the original method...
+            _original_del(self)
+        except:
+            # ... but ignore any exceptions it might raise
+            # NOTE: horrible anti-pattern. Just using because
+            # jupyter notebooks don't play nice with asyncio
+            pass
+
+    # replace the original __del__ method
+    for op in (_BEL, _TAS, _UWP):
+        if op is not None:
+            op.__del__ = _patched_del