Starting up Spyder

[virvw]

Description

What steps will reproduce the problem?

Automatic error when launching Spyder Windows X computer MNE-python

Traceback

Traceback (most recent call last):
  File "C:\Users\vv221713\AppData\Local\mne-python\1.6.0_0\Lib\site-packages\spyder\workers\updates.py", line 116, in start
    channel, channel_url = get_spyder_conda_channel()
    ^^^^^^^^^^^^^^^^^^^^
TypeError: cannot unpack non-iterable NoneType object

Versions

• Spyder version: 5.5.0 (conda)
• Python version: 3.11.5 64-bit
• Qt version: 5.15.8
• PyQt5 version: 5.15.9
• Operating System: Windows-10-10.0.19045-SP0

Dependencies

# Mandatory:
atomicwrites >=1.2.0             :  1.4.1 (OK)
chardet >=2.0.0                  :  5.2.0 (OK)
cloudpickle >=0.5.0              :  3.0.0 (OK)
cookiecutter >=1.6.0             :  2.5.0 (OK)
diff_match_patch >=20181111      :  20230430 (OK)
intervaltree >=3.0.2             :  3.1.0 (OK)
IPython >=8.13.0,<9.0.0,!=8.17.1 :  8.17.2 (OK)
jedi >=0.17.2,<0.20.0            :  0.19.1 (OK)
jellyfish >=0.7                  :  1.0.3 (OK)
jsonschema >=3.2.0               :  4.20.0 (OK)
keyring >=17.0.0                 :  24.3.0 (OK)
nbconvert >=4.0                  :  7.11.0 (OK)
numpydoc >=0.6.0                 :  1.5.0 (OK)
paramiko >=2.4.0                 :  3.3.1 (OK)
parso >=0.7.0,<0.9.0             :  0.8.3 (OK)
pexpect >=4.4.0                  :  4.8.0 (OK)
pickleshare >=0.4                :  0.7.5 (OK)
psutil >=5.3                     :  5.9.5 (OK)
pygments >=2.0                   :  2.17.1 (OK)
pylint >=2.5.0,<3.1              :  3.0.2 (OK)
pylint_venv >=3.0.2              :  3.0.3 (OK)
pyls_spyder >=0.4.0              :  0.4.0 (OK)
pylsp >=1.9.0,<1.10.0            :  1.9.0 (OK)
pylsp_black >=1.2.0,<3.0.0       :  1.3.0 (OK)
qdarkstyle >=3.2.0,<3.3.0        :  3.2 (OK)
qstylizer >=0.2.2                :  0.2.2 (OK)
qtawesome >=1.2.1                :  1.2.3 (OK)
qtconsole >=5.5.0,<5.6.0         :  5.5.1 (OK)
qtpy >=2.1.0                     :  2.4.1 (OK)
rtree >=0.9.7                    :  1.1.0 (OK)
setuptools >=49.6.0              :  68.2.2 (OK)
sphinx >=0.6.6                   :  7.2.6 (OK)
spyder_kernels >=2.5.0,<2.6.0    :  2.5.0 (OK)
textdistance >=4.2.0             :  4.5.0 (OK)
three_merge >=0.1.1              :  0.1.1 (OK)
watchdog >=0.10.3                :  3.0.0 (OK)
zmq >=22.1.0                     :  25.1.1 (OK)

# Optional:
cython >=0.21                    :  None (NOK)
matplotlib >=3.0.0               :  3.8.2 (OK)
numpy >=1.7                      :  1.26.0 (OK)
pandas >=1.1.1                   :  2.1.3 (OK)
scipy >=0.17.0                   :  1.11.3 (OK)
sympy >=0.7.3                    :  1.12 (OK)

[ccordoba12]

Hey @virvw, thanks for reporting. This error is fixed in our latest version (5.5.5), but it seems it's not available yet in MNE.

@larsoner, could you confirm that?

[larsoner]

In the Versions above it says Spyder version: 5.5.0 (conda) -- @virvw did you conda update spyder sometime in the last couple of months?

I can't remember what our 1.6.0 installer shipped with but it would have been older than 5.5.5 for sure.

[ccordoba12]

@virvw did you conda update spyder sometime in the last couple of months?

@larsoner, so users can run conda in MNE? In that case we can treat it like any other Conda distribution.

[larsoner]

Yeah our installer is just a conda-constructed env with a bunch of stuff installed, including Spyder at least in our older versions.

[ccordoba12]

Ok, that's really good to know.

@virvw, then you need to run

conda install spyder=5.5.5

to fix your problem.

That's better than running

conda update spyder

because it'll only update Spyder, instead of bringing many other (perhaps undesired) updates.