Zarr example notebook on main branch not working #460
Description
Running open_group in the zarr notebook produces an error:
TypeError: __init__() got an unexpected keyword argument 'loop'
Produced by running the third cell:
fsstore = FSStore('https://dandiarchive.s3.amazonaws.com/zarr/7723d02f-1f71-4553-a7b0-47bda1ae8b42')
brainstem = zarr.open_group(fsstore, mode='r')
Full traceback:
Exception ignored in: <function ClientSession.__del__ at 0x7efeb46f1ca0>
Traceback (most recent call last):
File "/home/local/KHQ/brianna.major/.virtualenvs/itkwidgets/lib/python3.8/site-packages/aiohttp/client.py", line 269, in __del__
if not self.closed:
File "/home/local/KHQ/brianna.major/.virtualenvs/itkwidgets/lib/python3.8/site-packages/aiohttp/client.py", line 894, in closed
return self._connector is None or self._connector.closed
AttributeError: _connector
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Input In [6], in <cell line: 2>()
1 fsstore = FSStore('https://dandiarchive.s3.amazonaws.com/zarr/7723d02f-1f71-4553-a7b0-47bda1ae8b42')
----> 2 brainstem = zarr.open_group(fsstore, mode='r')
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/zarr/hierarchy.py:1344, in open_group(store, mode, cache_attrs, synchronizer, path, chunk_store, storage_options, zarr_version)
1341 # ensure store is initialized
1343 if mode in ['r', 'r+']:
-> 1344 if not contains_group(store, path=path):
1345 if contains_array(store, path=path):
1346 raise ContainsArrayError(path)
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/zarr/storage.py:116, in contains_group(store, path, explicit_only)
114 store_version = getattr(store, '_store_version', 2)
115 if store_version == 2 or explicit_only:
--> 116 return key in store
117 else:
118 if key in store:
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/zarr/storage.py:1413, in FSStore.__contains__(self, key)
1411 def __contains__(self, key):
1412 key = self._normalize_key(key)
-> 1413 return key in self.map
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/mapping.py:174, in FSMap.__contains__(self, key)
172 """Does key exist in mapping?"""
173 path = self._key_to_str(key)
--> 174 return self.fs.exists(path) and self.fs.isfile(path)
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/asyn.py:86, in sync_wrapper.<locals>.wrapper(*args, **kwargs)
83 @functools.wraps(func)
84 def wrapper(*args, **kwargs):
85 self = obj or args[0]
---> 86 return sync(self.loop, func, *args, **kwargs)
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/asyn.py:66, in sync(loop, func, timeout, *args, **kwargs)
64 raise FSTimeoutError from return_result
65 elif isinstance(return_result, BaseException):
---> 66 raise return_result
67 else:
68 return return_result
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/asyn.py:26, in _runner(event, coro, result, timeout)
24 coro = asyncio.wait_for(coro, timeout=timeout)
25 try:
---> 26 result[0] = await coro
27 except Exception as ex:
28 result[0] = ex
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/implementations/http.py:299, in HTTPFileSystem._exists(self, path, **kwargs)
297 try:
298 logger.debug(path)
--> 299 session = await self.set_session()
300 r = await session.get(path, **kw)
301 async with r:
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/implementations/http.py:122, in HTTPFileSystem.set_session(self)
120 async def set_session(self):
121 if self._session is None:
--> 122 self._session = await self.get_client(loop=self.loop, **self.client_kwargs)
123 if not self.asynchronous:
124 weakref.finalize(self, self.close_session, self.loop, self._session)
File ~/.virtualenvs/itkwidgets/lib/python3.8/site-packages/fsspec/implementations/http.py:29, in get_client(**kwargs)
28 async def get_client(**kwargs):
---> 29 return aiohttp.ClientSession(**kwargs)
TypeError: __init__() got an unexpected keyword argument 'loop'