Periodic callback errors

[maximlt]

Reporting here an issue first observed by @hoxbro (#2760) since I'm observing a potentially similar issue.

---

I'm seeing some (new) problems with this fix.

I have this code

import panel as pn
pn.panel("Test").servable()

Which I run with panel serve race_condition.py --autoreload, but when I reload the page multiple times I get this error:

2021-09-20 22:06:31,569 DocumentLifeCycleHandler on_session_destroyed callback <bound method PeriodicCallback._cleanup of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x00000250A9488AF8>, {'race_condition.py': 1632167947.1386704}), count=None, name='PeriodicCallback00196', period=500, running=False, timeout=None)> failed with following error: 'DocumentCallbackManager' object has no attribute '_change_callbacks'

Screenshot

Screencast

Video.mp4

Originally posted by @hoxbro in #2760 (comment)

---

I just executed the Tabulator.ipynb reference notebook and at the Streaming section saw in the logs after adding the periodic callback (pn.state.add_periodic_callback(stream_data, period=500, count=20)):

...
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0d89c74d0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=<function stream_data at 0x7fb0d89c7b90>, count=20, name='PeriodicCallback00191', period=500, running=True, timeout=None)>
ERROR:tornado.application:Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fb0

[philippjfr]

Hmm, @maximlt can you actually reproduce these issues because I'm having trouble reproducing anything.

[philippjfr]

@hoxbro Which version of Bokeh and Python were you using when you ran into these issues?

[maximlt]

@philippjfr I managed to reproduce Hoxbro's issue. I had to reload the page multiple times but eventually the error appeared. I see in this case three callbacks with different names.

...
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00201', period=500, running=True, timeout=None)>
2021-09-21 17:28:32,224 Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fc3407d35f0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00209', period=500, running=True, timeout=None)>
2021-09-21 17:28:32,294 Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fc3702b5b90>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00205', period=500, running=True, timeout=None)>
2021-09-21 17:28:32,617 Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fc3407d3560>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00201', period=500, running=True, timeout=None)>
2021-09-21 17:28:32,728 Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fc3407d35f0>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00209', period=500, running=True, timeout=None)>
2021-09-21 17:28:32,796 Exception in callback <function PeriodicCallback.start.<locals>.<lambda> at 0x7fc3702b5b90>
Traceback (most recent call last):
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/site-packages/tornado/ioloop.py", line 905, in _run
    return self.callback()
  File "/Users/mliquet/work/dev/panel/panel/io/callbacks.py", line 131, in <lambda>
    self._cb = PeriodicCallback(lambda: asyncio.create_task(self._periodic_callback), self.period)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/tasks.py", line 351, in create_task
    return loop.create_task(coro)
  File "/Users/mliquet/miniconda3/envs/panel-dev37/lib/python3.7/asyncio/base_events.py", line 404, in create_task
    task = tasks.Task(coro, loop=self)
TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00205', period=500, running=True, timeout=None)>

`doit env_capture`

     active environment : base
    active env location : /Users/mliquet/miniconda3/envs/panel-dev37
            shell level : 2
       user config file : /Users/mliquet/.condarc
 populated config files : /Users/mliquet/.condarc
          conda version : 4.10.3
    conda-build version : 3.21.5
         python version : 3.7.11.final.0
       virtual packages : __osx=10.16=0
                          __unix=0=0
                          __archspec=1=x86_64
       base environment : /Users/mliquet/miniconda3/envs/panel-dev37  (writable)
      conda av data dir : /Users/mliquet/miniconda3/envs/panel-dev37/etc/conda
  conda av metadata url : None
           channel URLs : https://repo.anaconda.com/pkgs/main/osx-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/osx-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /Users/mliquet/miniconda3/envs/panel-dev37/pkgs
                          /Users/mliquet/.conda/pkgs
       envs directories : /Users/mliquet/miniconda3/envs/panel-dev37/envs
                          /Users/mliquet/.conda/envs
               platform : osx-64
             user-agent : conda/4.10.3 requests/2.26.0 CPython/3.7.11 Darwin/20.6.0 OSX/10.16
                UID:GID : 502:20
             netrc file : None
           offline mode : False

# packages in environment at /Users/mliquet/miniconda3/envs/panel-dev37:
#
# Name                    Version                   Build  Channel
anyio                     3.3.0            py37hf985489_0    conda-forge
appnope                   0.1.2            py37hf985489_1    conda-forge
argon2-cffi               20.1.0           py37h271585c_2    conda-forge
async_generator           1.10                       py_0    conda-forge
attrs                     21.2.0             pyhd8ed1ab_0    conda-forge
babel                     2.9.1              pyh44b312d_0    conda-forge
backcall                  0.2.0              pyh9f0ad1d_0    conda-forge
backports                 1.0                        py_2    conda-forge
backports.functools_lru_cache 1.6.4              pyhd8ed1ab_0    conda-forge
beautifulsoup4            4.10.0             pyh06a4308_0  
bleach                    4.1.0              pyhd8ed1ab_0    conda-forge
bokeh                     2.4.0                      py_0    bokeh
branca                    0.4.2              pyhd8ed1ab_0    conda-forge
brotlipy                  0.7.0           py37h9ed2024_1003  
bzip2                     1.0.8                h1de35cc_0  
ca-certificates           2021.5.30            h033912b_0    conda-forge
certifi                   2021.5.30        py37hf985489_0    conda-forge
cffi                      1.14.6           py37h2125817_0  
chardet                   4.0.0           py37hecd8cb5_1003  
charset-normalizer        2.0.4              pyhd3eb1b0_0  
cloudpickle               1.6.0              pyhd3eb1b0_0  
cmarkgfm                  0.6.0            py37h271585c_0    conda-forge
codecov                   2.1.11             pyhd3deb0d_0    conda-forge
colorama                  0.4.4              pyh9f0ad1d_0    conda-forge
colorcet                  2.0.6                      py_0    pyviz/label/dev
conda                     4.10.3           py37hf985489_1    conda-forge
conda-build               3.21.5           py37hecd8cb5_0  
conda-package-handling    1.7.3            py37h9ed2024_1  
coverage                  5.5              py37h271585c_0    conda-forge
cryptography              3.4.7            py37h2fd3fbb_0  
cycler                    0.10.0                     py_2    conda-forge
decorator                 5.1.0              pyhd8ed1ab_0    conda-forge
defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge
docutils                  0.17.1           py37hf985489_0    conda-forge
doit                      0.33.1           py37hecd8cb5_0  
entrypoints               0.3             pyhd8ed1ab_1003    conda-forge
filelock                  3.0.12             pyhd3eb1b0_1  
flake8                    3.9.2              pyhd8ed1ab_0    conda-forge
folium                    0.12.0             pyhd8ed1ab_1    conda-forge
freetype                  2.10.4               h4cff582_1    conda-forge
glob2                     0.7                pyhd3eb1b0_0  
holoviews                 1.14.6                     py_0    pyviz/label/dev
icu                       58.2                 h0a44026_3  
idna                      3.2                pyhd3eb1b0_0  
importlib-metadata        4.8.1            py37hecd8cb5_0  
importlib_metadata        4.8.1                hd3eb1b0_0  
iniconfig                 1.1.1              pyh9f0ad1d_0    conda-forge
ipykernel                 5.5.5            py37h85f7c60_0    conda-forge
ipympl                    0.7.0              pyhd8ed1ab_0    conda-forge
ipython                   7.27.0           py37h4c52d7d_0    conda-forge
ipython_genutils          0.2.0                      py_1    conda-forge
ipywidgets                7.6.5              pyhd8ed1ab_0    conda-forge
jedi                      0.18.0           py37hf985489_2    conda-forge
jinja2                    2.11.3             pyhd3eb1b0_0  
jpeg                      9d                   hbcb3906_0    conda-forge
json5                     0.9.5              pyh9f0ad1d_0    conda-forge
jsonschema                3.2.0              pyhd8ed1ab_3    conda-forge
jupyter_bokeh             2.0.4                      py_0    bokeh
jupyter_client            7.0.3              pyhd8ed1ab_0    conda-forge
jupyter_core              4.8.1            py37hf985489_0    conda-forge
jupyter_server            1.11.0             pyhd8ed1ab_0    conda-forge
jupyterlab                3.1.12             pyhd8ed1ab_0    conda-forge
jupyterlab_pygments       0.1.2              pyh9f0ad1d_0    conda-forge
jupyterlab_server         2.8.1              pyhd8ed1ab_0    conda-forge
jupyterlab_widgets        1.0.2              pyhd8ed1ab_0    conda-forge
keyring                   23.2.1           py37hf985489_0    conda-forge
kiwisolver                1.3.2            py37h737db71_0    conda-forge
lcms2                     2.12                 h577c468_0    conda-forge
libarchive                3.4.2                haa3ed63_0  
libblas                   3.9.0           11_osx64_openblas    conda-forge
libcblas                  3.9.0           11_osx64_openblas    conda-forge
libcxx                    12.0.1               habf9029_0    conda-forge
libffi                    3.3                  hb1e8313_2  
libgfortran               5.0.0           9_3_0_h6c81a4c_23    conda-forge
libgfortran5              9.3.0               h6c81a4c_23    conda-forge
libiconv                  1.16                 h1de35cc_0  
liblapack                 3.9.0           11_osx64_openblas    conda-forge
liblief                   0.10.1               h0a44026_0  
libopenblas               0.3.17          openmp_h3351f45_1    conda-forge
libpng                    1.6.37               h7cec526_2    conda-forge
libsodium                 1.0.18               hbcb3906_1    conda-forge
libtiff                   4.2.0                h87d7836_0  
libwebp-base              1.2.1                h0d85af4_0    conda-forge
libxml2                   2.9.12               hcdb78fc_0  
llvm-openmp               12.0.1               hda6cdc1_1    conda-forge
lz4-c                     1.9.3                h23ab428_1  
macfsevents               0.8.1            py37h9ed2024_0  
markdown                  3.3.4              pyhd8ed1ab_0    conda-forge
markupsafe                2.0.1            py37h9ed2024_0  
matplotlib                3.2.2                         1    conda-forge
matplotlib-base           3.2.2            py37hddda452_1    conda-forge
matplotlib-inline         0.1.3              pyhd8ed1ab_0    conda-forge
mccabe                    0.6.1                      py_1    conda-forge
mistune                   0.8.4           py37h271585c_1004    conda-forge
more-itertools            8.10.0             pyhd8ed1ab_0    conda-forge
nbclassic                 0.3.2              pyhd8ed1ab_0    conda-forge
nbclient                  0.5.4              pyhd8ed1ab_0    conda-forge
nbconvert                 6.1.0            py37hf985489_1    conda-forge
nbformat                  5.1.3              pyhd8ed1ab_0    conda-forge
nbsmoke                   0.5.0              pyh9f0ad1d_0    pyviz/label/dev
ncurses                   6.2                  h2e338ed_4    conda-forge
nest-asyncio              1.5.1              pyhd8ed1ab_0    conda-forge
notebook                  6.4.4              pyha770c72_0    conda-forge
numpy                     1.21.2           py37haefe36b_0    conda-forge
olefile                   0.46               pyh9f0ad1d_1    conda-forge
openssl                   1.1.1l               h0d85af4_0    conda-forge
packaging                 21.0               pyhd8ed1ab_0    conda-forge
pandas                    1.3.3            py37h5b83a90_0    conda-forge
pandoc                    2.14.2               h0d85af4_0    conda-forge
pandocfilters             1.5.0              pyhd8ed1ab_0    conda-forge
panel                     0.13.0a5.post12+g258b0aee.dirty           dev_0    <develop>
param                     1.11.2a1                   py_0    pyviz/label/dev
parameterized             0.8.1              pyhd3deb0d_0    conda-forge
parso                     0.8.2              pyhd8ed1ab_0    conda-forge
pexpect                   4.8.0              pyh9f0ad1d_2    conda-forge
pickleshare               0.7.5                   py_1003    conda-forge
pillow                    7.2.0            py37hf860fee_2    conda-forge
pip                       21.2.4             pyhd8ed1ab_0    conda-forge
pkginfo                   1.7.1            py37hecd8cb5_0  
plotly                    5.3.1              pyhd8ed1ab_0    conda-forge
pluggy                    0.13.1           py37hecd8cb5_0  
prometheus_client         0.11.0             pyhd8ed1ab_0    conda-forge
prompt-toolkit            3.0.20             pyha770c72_0    conda-forge
psutil                    5.8.0            py37h9ed2024_1  
ptyprocess                0.7.0              pyhd3deb0d_0    conda-forge
py                        1.10.0             pyhd3eb1b0_0  
py-lief                   0.10.1           py37haf313ee_0  
pycodestyle               2.7.0              pyhd8ed1ab_0    conda-forge
pycosat                   0.6.3            py37h9ed2024_0  
pycparser                 2.20                       py_2  
pyct                      0.4.8                      py_0    pyviz/label/dev
pyct-core                 0.4.8                      py_0    pyviz/label/dev
pyctdev                   0.6.4                      py_0    pyviz
pyflakes                  2.3.1              pyhd8ed1ab_0    conda-forge
pygments                  2.10.0             pyhd8ed1ab_0    conda-forge
pyopenssl                 20.0.1             pyhd3eb1b0_1  
pyparsing                 2.4.7              pyh9f0ad1d_0    conda-forge
pyrsistent                0.17.3           py37h271585c_2    conda-forge
pysocks                   1.7.1            py37hecd8cb5_0  
pytest                    6.2.5            py37hf985489_0    conda-forge
pytest-cov                2.12.1             pyhd8ed1ab_0    conda-forge
python                    3.7.11               h88f2d9e_0  
python-dateutil           2.8.2              pyhd8ed1ab_0    conda-forge
python-libarchive-c       2.9                pyhd3eb1b0_1  
python_abi                3.7                     2_cp37m    conda-forge
pytz                      2021.1             pyhd3eb1b0_0  
pyviz_comms               2.1.0                      py_0    pyviz/label/dev
pyyaml                    5.4.1            py37h9ed2024_1  
pyzmq                     22.3.0           py37h8f778e5_0    conda-forge
readline                  8.1                  h05e3726_0    conda-forge
readme_renderer           27.0               pyh9f0ad1d_0    conda-forge
requests                  2.26.0             pyhd3eb1b0_0  
requests-toolbelt         0.9.1                      py_0    conda-forge
requests-unixsocket       0.2.0                      py_0    conda-forge
rfc3986                   1.5.0              pyhd8ed1ab_0    conda-forge
ripgrep                   12.1.1                        0  
ruamel_yaml               0.15.100         py37h9ed2024_0  
scipy                     1.7.1            py37h4e3cf02_0    conda-forge
send2trash                1.8.0              pyhd8ed1ab_0    conda-forge
setuptools                58.0.4           py37hf985489_0    conda-forge
six                       1.16.0             pyhd3eb1b0_0  
sniffio                   1.2.0            py37hf985489_1    conda-forge
soupsieve                 2.2.1              pyhd3eb1b0_0  
sqlite                    3.36.0               h23a322b_1    conda-forge
tenacity                  8.0.1              pyhd8ed1ab_0    conda-forge
terminado                 0.12.1           py37hf985489_0    conda-forge
testpath                  0.5.0              pyhd8ed1ab_0    conda-forge
tk                        8.6.11               h5dbffcc_1    conda-forge
toml                      0.10.2             pyhd8ed1ab_0    conda-forge
tornado                   6.1              py37h271585c_1    conda-forge
tqdm                      4.62.2             pyhd8ed1ab_0    conda-forge
traitlets                 5.1.0              pyhd8ed1ab_0    conda-forge
twine                     3.4.2              pyhd8ed1ab_0    conda-forge
typing_extensions         3.10.0.2           pyh06a4308_0  
urllib3                   1.26.6             pyhd3eb1b0_1  
wcwidth                   0.2.5              pyh9f0ad1d_2    conda-forge
webencodings              0.5.1                      py_1    conda-forge
websocket-client          0.57.0           py37hf985489_4    conda-forge
wheel                     0.37.0             pyhd8ed1ab_1    conda-forge
widgetsnbextension        3.5.1            py37hf985489_4    conda-forge
xz                        5.2.5                haf1e3a3_1    conda-forge
yaml                      0.2.5                haf1e3a3_0  
zeromq                    4.3.4                he49afe7_1    conda-forge
zipp                      3.5.0              pyhd3eb1b0_0  
zlib                      1.2.11            h7795811_1010    conda-forge
zstd                      1.4.9                h322a384_0  
name: panel-dev37
channels:
  - defaults
prefix: /Users/mliquet/miniconda3/envs/panel-dev37/envs/panel-dev37

[philippjfr]

That's a very different issue from the one @hoxbro reported, his error was about document.callbacks._change_callbacks not existing, yours is about an issue with asyncio.create_task:

TypeError: a coroutine was expected, got <bound method PeriodicCallback._periodic_callback of PeriodicCallback(callback=functools.partial(<function _reload_on_update at 0x7fc360c6e440>, {}), count=None, name='PeriodicCallback00205', period=500, running=True, timeout=None)>

[philippjfr]

In any case, that's a real issue and in fact you should never get in that condition.

[philippjfr]

Actually, I can reproduce @hoxbro's issue now.

[hoxbro]

Good that you can reproduce my issue, was just about writing my environment down. Sorry for the late reply, but I was busy at work.

my environment

     active environment : holoviz
    active env location : C:\Users\shh\miniconda3\envs\holoviz
            shell level : 2
       user config file : C:\Users\shh\.condarc
 populated config files : C:\Users\shh\.condarc
          conda version : 4.10.3
    conda-build version : 3.21.4
         python version : 3.8.5.final.0
       virtual packages : __cuda=11.3=0
                          __win=0=0
                          __archspec=1=x86_64
       base environment : C:\Users\shh\miniconda3  (writable)
      conda av data dir : C:\Users\shh\miniconda3\etc\conda
  conda av metadata url : None
           channel URLs : https://conda.anaconda.org/pyviz/win-64
                          https://conda.anaconda.org/pyviz/noarch
                          https://conda.anaconda.org/conda-forge/win-64
                          https://conda.anaconda.org/conda-forge/noarch
                          https://repo.anaconda.com/pkgs/main/win-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/win-64
                          https://repo.anaconda.com/pkgs/r/noarch
                          https://repo.anaconda.com/pkgs/msys2/win-64
                          https://repo.anaconda.com/pkgs/msys2/noarch
          package cache : C:\Users\shh\miniconda3\pkgs
                          C:\Users\shh\.conda\pkgs
                          C:\Users\shh\AppData\Local\conda\conda\pkgs
       envs directories : C:\Users\shh\miniconda3\envs
                          C:\Users\shh\.conda\envs
                          C:\Users\shh\AppData\Local\conda\conda\envs
               platform : win-64
             user-agent : conda/4.10.3 requests/2.26.0 CPython/3.8.5 Windows/10 Windows/10.0.19041
          administrator : False
             netrc file : None
           offline mode : False

# packages in environment at C:\Users\shh\miniconda3\envs\holoviz:
#
# Name                    Version                   Build  Channel
anyio                     3.3.0            py37h03978a9_0    conda-forge
argcomplete               1.12.3             pyhd8ed1ab_2    conda-forge
argon2-cffi               20.1.0           py37hcc03f2d_2    conda-forge
async_generator           1.10                       py_0    conda-forge
atomicwrites              1.4.0              pyh9f0ad1d_0    conda-forge
attrs                     21.2.0             pyhd8ed1ab_0    conda-forge
babel                     2.9.1              pyh44b312d_0    conda-forge
backcall                  0.2.0              pyh9f0ad1d_0    conda-forge
backports                 1.0                        py_2    conda-forge
backports.functools_lru_cache 1.6.4              pyhd8ed1ab_0    conda-forge
beautifulsoup4            4.10.0             pyha770c72_0    conda-forge
bleach                    4.1.0              pyhd8ed1ab_0    conda-forge
bokeh                     2.4.0                      py_0    bokeh/label/dev
branca                    0.4.2              pyhd8ed1ab_0    conda-forge
brotlipy                  0.7.0           py37hcc03f2d_1001    conda-forge
bzip2                     1.0.8                h8ffe710_4    conda-forge
ca-certificates           2021.5.30            h5b45459_0    conda-forge
certifi                   2021.5.30        py37h03978a9_0    conda-forge
cffi                      1.14.6           py37hd8e9650_1    conda-forge
chardet                   4.0.0            py37h03978a9_1    conda-forge
charset-normalizer        2.0.0              pyhd8ed1ab_0    conda-forge
cloudpickle               2.0.0              pyhd8ed1ab_0    conda-forge
cmarkgfm                  0.6.0            py37hcc03f2d_0    conda-forge
codecov                   2.1.11             pyhd3deb0d_0    conda-forge
colorama                  0.4.4              pyh9f0ad1d_0    conda-forge
colorcet                  2.0.6                      py_0    pyviz/label/dev
conda                     4.10.3           py37h03978a9_1    conda-forge
conda-build               3.21.4           py37h03978a9_0    conda-forge
conda-package-handling    1.7.3            py37ha54c9ec_0    conda-forge
coverage                  5.5              py37hcc03f2d_0    conda-forge
cryptography              3.4.7            py37h20c650d_0    conda-forge
cycler                    0.10.0                     py_2    conda-forge
debugpy                   1.4.1            py37hf2a7229_0    conda-forge
decorator                 5.1.0              pyhd8ed1ab_0    conda-forge
defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge
docutils                  0.17.1           py37h03978a9_0    conda-forge
doit                      0.33.1           py37hc8dfbb8_1    conda-forge
entrypoints               0.3             pyhd8ed1ab_1003    conda-forge
filelock                  3.0.12             pyh9f0ad1d_0    conda-forge
flake8                    3.9.2              pyhd8ed1ab_0    conda-forge
folium                    0.12.0             pyhd8ed1ab_1    conda-forge
freetype                  2.10.4               h546665d_1    conda-forge
glob2                     0.7                        py_0    conda-forge
holoviews                 1.14.6                     py_0    pyviz/label/dev
hvplot                    0.7.3                      py_0    pyviz
icu                       68.1                 h0e60522_0    conda-forge
idna                      3.1                pyhd3deb0d_0    conda-forge
importlib-metadata        4.8.1            py37h03978a9_0    conda-forge
importlib_metadata        4.8.1                hd8ed1ab_0    conda-forge
iniconfig                 1.1.1              pyh9f0ad1d_0    conda-forge
intel-openmp              2021.3.0          h57928b3_3372    conda-forge
ipykernel                 6.4.1            py37h4038f58_0    conda-forge
ipympl                    0.7.0              pyhd8ed1ab_0    conda-forge
ipython                   7.27.0           py37h4038f58_0    conda-forge
ipython_genutils          0.2.0                      py_1    conda-forge
ipywidgets                7.6.5              pyhd8ed1ab_0    conda-forge
jbig                      2.1               h8d14728_2003    conda-forge
jedi                      0.18.0           py37h03978a9_2    conda-forge
jinja2                    3.0.1              pyhd8ed1ab_0    conda-forge
jpeg                      9d                   h8ffe710_0    conda-forge
json5                     0.9.5              pyh9f0ad1d_0    conda-forge
jsonschema                3.2.0              pyhd8ed1ab_3    conda-forge
jupyter_client            7.0.3              pyhd8ed1ab_0    conda-forge
jupyter_core              4.8.1            py37h03978a9_0    conda-forge
jupyter_server            1.11.0             pyhd8ed1ab_0    conda-forge
jupyterlab                3.1.12             pyhd8ed1ab_0    conda-forge
jupyterlab_pygments       0.1.2              pyh9f0ad1d_0    conda-forge
jupyterlab_server         2.8.1              pyhd8ed1ab_0    conda-forge
jupyterlab_widgets        1.0.2              pyhd8ed1ab_0    conda-forge
keyring                   23.2.1           py37h03978a9_0    conda-forge
kiwisolver                1.3.2            py37h8c56517_0    conda-forge
lcms2                     2.12                 h2a16943_0    conda-forge
lerc                      2.2.1                h0e60522_0    conda-forge
libarchive                3.5.2                hb45042f_0    conda-forge
libblas                   3.9.0              11_win64_mkl    conda-forge
libcblas                  3.9.0              11_win64_mkl    conda-forge
libclang                  11.1.0          default_h5c34c98_1    conda-forge
libdeflate                1.7                  h8ffe710_5    conda-forge
libiconv                  1.16                 he774522_0    conda-forge
liblapack                 3.9.0              11_win64_mkl    conda-forge
liblief                   0.11.5               h0e60522_0    conda-forge
libpng                    1.6.37               h1d00b33_2    conda-forge
libsodium                 1.0.18               h8d14728_1    conda-forge
libtiff                   4.3.0                h0c97f57_1    conda-forge
libxml2                   2.9.12               hf5bbc77_0    conda-forge
lz4-c                     1.9.3                h8ffe710_1    conda-forge
lzo                       2.10              he774522_1000    conda-forge
m2-msys2-runtime          2.5.0.17080.65c939c               3    conda-forge
m2-patch                  2.7.5                         2    conda-forge
m2w64-gcc-libgfortran     5.3.0                         6    conda-forge
m2w64-gcc-libs            5.3.0                         7    conda-forge
m2w64-gcc-libs-core       5.3.0                         7    conda-forge
m2w64-gmp                 6.1.0                         2    conda-forge
m2w64-libwinpthread-git   5.0.0.4634.697f757               2    conda-forge
markdown                  3.3.4              pyhd8ed1ab_0    conda-forge
markupsafe                2.0.1            py37hcc03f2d_0    conda-forge
matplotlib                3.2.2                         1    conda-forge
matplotlib-base           3.2.2            py37hab8957c_1    conda-forge
matplotlib-inline         0.1.3              pyhd8ed1ab_0    conda-forge
mccabe                    0.6.1                      py_1    conda-forge
menuinst                  1.4.18           py37h03978a9_0    conda-forge
mistune                   0.8.4           py37hcc03f2d_1004    conda-forge
mkl                       2021.3.0           hb70f87d_564    conda-forge
more-itertools            8.10.0             pyhd8ed1ab_0    conda-forge
msys2-conda-epoch         20160418                      1    conda-forge
nbclassic                 0.3.2              pyhd8ed1ab_0    conda-forge
nbclient                  0.5.4              pyhd8ed1ab_0    conda-forge
nbconvert                 6.1.0            py37h03978a9_1    conda-forge
nbformat                  5.1.3              pyhd8ed1ab_0    conda-forge
nbsmoke                   0.5.0              pyh9f0ad1d_0    pyviz/label/dev
nest-asyncio              1.5.1              pyhd8ed1ab_0    conda-forge
notebook                  6.4.4              pyha770c72_0    conda-forge
numpy                     1.21.2           py37h940b05c_0    conda-forge
olefile                   0.46               pyh9f0ad1d_1    conda-forge
openjpeg                  2.4.0                hb211442_1    conda-forge
openssl                   1.1.1l               h8ffe710_0    conda-forge
packaging                 21.0               pyhd8ed1ab_0    conda-forge
pandas                    1.3.3            py37h9386db6_0    conda-forge
pandoc                    2.14.2               h8ffe710_0    conda-forge
pandocfilters             1.5.0              pyhd8ed1ab_0    conda-forge
panel                     0.13.0a5.post8+g80a66c3f           dev_0    <develop>
param                     1.11.2a1                   py_0    pyviz/label/dev
parameterized             0.8.1              pyhd3deb0d_0    conda-forge
parso                     0.8.2              pyhd8ed1ab_0    conda-forge
pickleshare               0.7.5                   py_1003    conda-forge
pillow                    8.3.2            py37hd7d9ad0_0    conda-forge
pip                       21.2.4             pyhd8ed1ab_0    conda-forge
pkginfo                   1.7.1              pyhd8ed1ab_0    conda-forge
plotly                    5.3.1              pyhd8ed1ab_0    conda-forge
pluggy                    1.0.0            py37h03978a9_1    conda-forge
prometheus_client         0.11.0             pyhd8ed1ab_0    conda-forge
prompt-toolkit            3.0.20             pyha770c72_0    conda-forge
psutil                    5.8.0            py37hcc03f2d_1    conda-forge
py                        1.10.0             pyhd3deb0d_0    conda-forge
py-lief                   0.11.5           py37hf2a7229_0    conda-forge
pycodestyle               2.7.0              pyhd8ed1ab_0    conda-forge
pycosat                   0.6.3           py37hcc03f2d_1006    conda-forge
pycparser                 2.20               pyh9f0ad1d_2    conda-forge
pyct                      0.4.8                      py_0    pyviz/label/dev
pyct-core                 0.4.8                      py_0    pyviz/label/dev
pyctdev                   0.6.4                      py_0    pyviz
pyflakes                  2.3.1              pyhd8ed1ab_0    conda-forge
pygments                  2.10.0             pyhd8ed1ab_0    conda-forge
pyopenssl                 20.0.1             pyhd8ed1ab_0    conda-forge
pyparsing                 2.4.7              pyh9f0ad1d_0    conda-forge
pyqt                      5.12.3           py37h03978a9_7    conda-forge
pyqt-impl                 5.12.3           py37hf2a7229_7    conda-forge
pyqt5-sip                 4.19.18          py37hf2a7229_7    conda-forge
pyqtchart                 5.12             py37hf2a7229_7    conda-forge
pyqtwebengine             5.12.1           py37hf2a7229_7    conda-forge
pyrsistent                0.17.3           py37hcc03f2d_2    conda-forge
pysocks                   1.7.1            py37h03978a9_3    conda-forge
pytest                    6.2.5            py37h03978a9_0    conda-forge
pytest-cov                2.12.1             pyhd8ed1ab_0    conda-forge
python                    3.7.10          h7840368_101_cpython    conda-forge
python-dateutil           2.8.2              pyhd8ed1ab_0    conda-forge
python-libarchive-c       3.1              py37h03978a9_0    conda-forge
python_abi                3.7                     2_cp37m    conda-forge
pytz                      2021.1             pyhd8ed1ab_0    conda-forge
pyviz_comms               2.1.0                      py_0    pyviz/label/dev
pywin32                   301              py37hcc03f2d_0    conda-forge
pywin32-ctypes            0.2.0           py37h03978a9_1003    conda-forge
pywinpty                  1.1.4            py37h7f67f24_0    conda-forge
pyyaml                    5.4.1            py37hcc03f2d_1    conda-forge
pyzmq                     22.3.0           py37hcce574b_0    conda-forge
qt                        5.12.9               h5909a2a_4    conda-forge
readme_renderer           27.0               pyh9f0ad1d_0    conda-forge
requests                  2.26.0             pyhd8ed1ab_0    conda-forge
requests-toolbelt         0.9.1                      py_0    conda-forge
requests-unixsocket       0.2.0                      py_0    conda-forge
rfc3986                   1.5.0              pyhd8ed1ab_0    conda-forge
ripgrep                   13.0.0               h7f3b576_0    conda-forge
ruamel_yaml               0.15.80         py37hcc03f2d_1004    conda-forge
scipy                     1.7.1            py37hb6553fb_0    conda-forge
send2trash                1.8.0              pyhd8ed1ab_0    conda-forge
setuptools                58.0.4           py37h03978a9_0    conda-forge
six                       1.16.0             pyh6c4a22f_0    conda-forge
sniffio                   1.2.0            py37h03978a9_1    conda-forge
soupsieve                 2.0.1                      py_1    conda-forge
sqlite                    3.36.0               h8ffe710_1    conda-forge
tbb                       2021.3.0             h2d74725_0    conda-forge
tenacity                  8.0.1              pyhd8ed1ab_0    conda-forge
terminado                 0.12.1           py37h03978a9_0    conda-forge
testpath                  0.5.0              pyhd8ed1ab_0    conda-forge
tk                        8.6.11               h8ffe710_1    conda-forge
toml                      0.10.2             pyhd8ed1ab_0    conda-forge
tornado                   6.1              py37hcc03f2d_1    conda-forge
tqdm                      4.62.2             pyhd8ed1ab_0    conda-forge
traitlets                 5.1.0              pyhd8ed1ab_0    conda-forge
twine                     3.4.2              pyhd8ed1ab_0    conda-forge
typing_extensions         3.10.0.0           pyha770c72_0    conda-forge
ucrt                      10.0.20348.0         h57928b3_0    conda-forge
urllib3                   1.26.6             pyhd8ed1ab_0    conda-forge
vc                        14.2                 hb210afc_5    conda-forge
vs2015_runtime            14.29.30037          h902a5da_5    conda-forge
wcwidth                   0.2.5              pyh9f0ad1d_2    conda-forge
webencodings              0.5.1                      py_1    conda-forge
websocket-client          0.57.0           py37h03978a9_4    conda-forge
wheel                     0.37.0             pyhd8ed1ab_1    conda-forge
widgetsnbextension        3.5.1            py37h03978a9_4    conda-forge
win_inet_pton             1.1.0            py37h03978a9_2    conda-forge
winpty                    0.4.3                         4    conda-forge
xz                        5.2.5                h62dcd97_1    conda-forge
yaml                      0.2.5                he774522_0    conda-forge
zeromq                    4.3.4                h0e60522_1    conda-forge
zipp                      3.5.0              pyhd8ed1ab_0    conda-forge
zlib                      1.2.11            h62dcd97_1010    conda-forge
zstd                      1.5.0                h6255e5f_0    conda-forge