Helo with jupyterlab

Hello,

Starting out to play with jupyterlab and ran in to the below with first sheet, what am I doing wrong ?

TypeError Traceback (most recent call last)
Cell In[8], line 21
18 continue
20 try:
—> 21 event_data = json.loads(event.event_data)
22 except ValueError:
23 continue

File /usr/lib/python3.9/json/init.py:339, in loads(s, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
337 else:
338 if not isinstance(s, (bytes, bytearray)):
→ 339 raise TypeError(f’the JSON object must be str, bytes or bytearray, ’
340 f’not {s.class.name}’)
341 s = s.decode(detect_encoding(s), ‘surrogatepass’)
343 if (cls is None and object_hook is None and
344 parse_int is None and parse_float is None and
345 parse_constant is None and object_pairs_hook is None and not kw):

TypeError: the JSON object must be str, bytes or bytearray, not NoneType

The docs for that have not been updated for nearly two years. I’m guessing it is out of date.

Latest commit 08d2d68 on May 26, 2021

BUt the addon it self was updated not long ago.