Connecting to Kernal message for ever

[sananthv]

Description

What steps will reproduce the problem?

I installed spyder in windows 10 in a python virtual env. It gave the spyder kernal missing dependencies! error which I ignored. It is still saying that it is connecting to kernal and the loading circle is there for the last 10 minutes

Traceback

Traceback (most recent call last):
  File "c:\users\ananthselladoray\documents\pyvirenv1\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 1323, in close_client
    self.create_new_client()
  File "c:\users\ananthselladoray\documents\pyvirenv1\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 1007, in create_new_client
    self.connect_client_to_kernel(client, is_cython=is_cython,
  File "c:\users\ananthselladoray\documents\pyvirenv1\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 1041, in connect_client_to_kernel
    km, kc = self.create_kernel_manager_and_kernel_client(
  File "c:\users\ananthselladoray\documents\pyvirenv1\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 1506, in create_kernel_manager_and_kernel_client
    kernel_client.hb_channel.time_to_dead = 25.0
  File "c:\users\ananthselladoray\documents\pyvirenv1\lib\site-packages\jupyter_client\client.py", line 364, in hb_channel
    self._hb_channel = self.hb_channel_class(self.context, self.session, url)
  File "c:\users\ananthselladoray\documents\pyvirenv1\lib\site-packages\qtconsole\util.py", line 64, in __new__
    QClass.__init__(inst)
TypeError: __init__() missing 1 required positional argument: 'context'

Versions

• Spyder version: 5.0.0
• Python version: 3.9.1
• Qt version: 5.12.10
• PyQt5 version: 5.12.3
• Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0          :  1.4.0 (OK)
chardet >=2.0.0               :  4.0.0 (OK)
cloudpickle >=0.5.0           :  1.6.0 (OK)
cookiecutter >=1.6.0          :  1.7.2 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree >=3.0.2          :  3.1.0 (OK)
IPython >=7.6.0               :  7.22.0 (OK)
jedi =0.17.2                  :  0.17.2 (OK)
jsonschema >=3.2.0            :  3.2.0 (OK)
keyring >=17.0.0              :  23.0.1 (OK)
nbconvert >=4.0               :  6.0.7 (OK)
numpydoc >=0.6.0              :  1.1.0 (OK)
paramiko >=2.4.0              :  2.7.2 (OK)
parso =0.7.0                  :  0.7.0 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.8.0 (OK)
pygments >=2.0                :  2.8.1 (OK)
pylint >=1.0                  :  2.7.4 (OK)
pyls >=0.36.2;<1.0.0          :  0.36.2 (OK)
pyls_black >=0.4.6            :  0.4.6 (OK)
pyls_spyder >=0.3.2           :  0.3.2 (OK)
qdarkstyle =3.0.2             :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.1.10 (OK)
qtawesome >=0.5.7             :  1.0.2 (OK)
qtconsole >=5.0.3             :  5.0.3 (OK)
qtpy >=1.5.0                  :  1.9.0 (OK)
setuptools >=39.0.0           :  54.1.2 (OK)
sphinx >=0.6.6                :  3.5.3 (OK)
spyder_kernels >=2.0.1,<2.1.0 :  2.0.1 (NOK)
textdistance >=4.2.0          :  4.2.1 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog >=0.10.3;<2.0.0      :  1.0.2 (OK)
zmq >=17                      :  22.0.3 (OK)

# Optional:
cython >=0.21                 :  None (NOK)
matplotlib >=2.0.0            :  None (NOK)
numpy >=1.7                   :  None (OK)
pandas >=1.1.1                :  None (NOK)
scipy >=0.17.0                :  None (NOK)
sympy >=0.7.3                 :  None (NOK)

[ericpre]

Do you jupyter_client 6.1.13? If so, this seems to be due to the last release of jupyter_client and more specifically jupyter/jupyter_client#623.

[dalthviz]

Hi @sananthv thanks for the feedback! I think @ericpre could be in the right track here. Could you try downgrading jupyter_client and check again? Thanks!

Pinging @ccordoba12 just in case

[dalthviz]

Note: some more info provided by @slawomirmarczynski :

Description

After updating Anaconda Spyder 4.xx to 5.0 Spyder does run. Rollback to 4.15 don't fix this bug.

What steps will reproduce the problem?

MS Windows 10, drive c: is SSD, Intel I9 CPU, 32GB RAM, Anaconda installed "for user".

1. Install Anaconda

2. Add conda-forge as a channel

3. In Anaconda terminal:  conda update conda

4. In Anaconda terminal:  conda update --all

5. Run Spyder 5.0 - bug "no QTCore"

6. Unistall/downgrade Spyder to 4.15 (or 4.25)

7. Try run Spyder 4.15 - kaboom!!! - "we have problem"

Workaround:

1. Uninstall Anaconda, remove remaing files/dir (like .spyder-something, .conda etc.)

2. Install Anaconda

3. conda update conda   _or_  conda update --all

4. Do nothing - Spyder 4.15 works - ok

Traceback

  File "C:\Users\Slawek\anaconda3\lib\site-packages\spyder\plugins\base.py", line 327, in <lambda>
    toggled=lambda checked: self.toggle_view(checked),
  File "C:\Users\Slawek\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 214, in toggle_view
    self.create_new_client(give_focus=False)
  File "C:\Users\Slawek\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 709, in create_new_client
    self.connect_client_to_kernel(client, is_cython=is_cython,
  File "C:\Users\Slawek\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 743, in connect_client_to_kernel
    km, kc = self.create_kernel_manager_and_kernel_client(
  File "C:\Users\Slawek\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 1234, in create_kernel_manager_and_kernel_client
    kernel_client.hb_channel.time_to_dead = 25.0
  File "C:\Users\Slawek\anaconda3\lib\site-packages\jupyter_client\client.py", line 364, in hb_channel
    self._hb_channel = self.hb_channel_class(self.context, self.session, url)
  File "C:\Users\Slawek\anaconda3\lib\site-packages\qtconsole\util.py", line 64, in __new__
    QClass.__init__(inst)
TypeError: __init__() missing 1 required positional argument: 'context'

Versions

* Spyder version: 4.1.5

* Python version: 3.8.8

* Qt version: 5.12.9

* PyQt5 version: 5.12.3

* Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.4.0 (OK)
chardet >=2.0.0                :  4.0.0 (OK)
cloudpickle >=0.5.0            :  1.6.0 (OK)
diff_match_patch >=20181111    :  20200713 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.22.0 (OK)
jedi =0.17.1                   :  0.17.1 (OK)
nbconvert >=4.0                :  6.0.7 (OK)
numpydoc >=0.6.0               :  1.1.0 (OK)
paramiko >=2.4.0               :  2.7.2 (OK)
parso =0.7.0                   :  0.7.0 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.8.0 (OK)
pygments >=2.0                 :  2.8.1 (OK)
pylint >=1.0                   :  2.7.2 (OK)
pyls >=0.34.0;<1.0.0           :  0.36.1 (OK)
qdarkstyle >=2.8               :  3.0.2 (OK)
qtawesome >=0.5.7              :  1.0.2 (OK)
qtconsole >=4.6.0              :  5.0.3 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.7 (OK)
sphinx >=0.6.6                 :  3.5.3 (OK)
spyder_kernels >=1.9.4;<1.10.0 :  1.9.4 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  22.0.3 (OK)

# Optional:
cython >=0.21                  :  0.29.22 (OK)
matplotlib >=2.0.0             :  3.4.1 (OK)
numpy >=1.7                    :  1.18.5 (OK)
pandas >=0.13.1                :  1.2.3 (OK)
scipy >=0.17.0                 :  1.6.2 (OK)
sympy >=0.7.3                  :  1.7.1 (OK)

[dalthviz]

I think this is already resolved in jupyter_client @ccordoba12 ?

[ccordoba12]

Yes, the solution for now is to install jupyter_client 6.1.12. Higher versions were marked as broken both in PyPI and Conda-forge.