Fresh installation of Anaconda with conda 4.7 doesn't allow to update Spyder

Description

What steps will reproduce the problem?

i don’t know ,i just download the ananconda from website and install

Traceback

  File "D:\Users\i-pengyunshan\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\__init__.py", line 515, in <lambda>
    toggled=lambda checked: self.toggle_view(checked),
  File "D:\Users\i-pengyunshan\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole.py", line 771, in toggle_view
    self.create_new_client(give_focus=False)
  File "D:\Users\i-pengyunshan\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole.py", line 1111, in create_new_client
    self.register_client(client)
  File "D:\Users\i-pengyunshan\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\ipythonconsole.py", line 1307, in register_client
    self.main.historylog.add_history(client.history_filename)
  File "D:\Users\i-pengyunshan\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\history.py", line 240, in add_history
    encoding.write(text, filename)
  File "D:\Users\i-pengyunshan\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\utils\encoding.py", line 233, in write
    with open(filename, mode) as textfile:
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\i-pengyunshan\\.spyder-py3\\history.py'

Versions

• Spyder version: 3.3.3
• Python version: 3.7.3
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

pyflakes >=0.6.0  :  2.1.1 (OK)
pycodestyle >=2.3 :  2.5.0 (OK)
pygments >=2.0    :  2.3.1 (OK)
sphinx >=0.6.6    :  1.8.5 (OK)
rope >=0.9.4      :  0.12.0 (OK)
jedi >=0.9.0      :  0.13.3 (OK)
nbconvert >=4.0   :  5.4.1 (OK)
pandas >=0.13.1   :  0.24.2 (OK)
numpy >=1.7       :  1.16.2 (OK)
sympy >=0.7.3     :  1.3 (OK)
cython >=0.21     :  0.29.6 (OK)
qtconsole >=4.2.0 :  4.4.3 (OK)
IPython >=4.0     :  7.4.0 (OK)
matplotlib >=2.0.0:  3.0.3 (OK)
pylint >=0.25     :  2.3.1 (OK)

[vganjali]

I had similar issue, and it was happening because I had jupyter nb running on my machine. I closed it and was able to update packages using conda.

[msarahan]

You updated the spyder-kernels requirement: https://github.com/AnacondaRecipes/spyder-feedstock/blame/master/recipe/meta.yaml#L48 but @dalthviz had at some point in the past explicitly specified spyder-kernels=0.4. Conda 4.7 tracks explicit requests much more that earlier versions. It uses the history to build up the specs, rather than using the state of the prefix to build up the specs. This is an optimization, but it also has the nice effect of allowing straightforward updates from earlier python packages that have shim packages, like enum34, to python versions that no longer need and indeed don’t have those shim packages. With the new behavior, the shims fall away, because they were never explicitly requested, and they lose their connection to any explicit request. The message tries to communicate that, but it’s probably a bit terse, especially if you aren’t familiar with that solver behavior change.

The following specifications were found to be in conflict with a past explicit spec that is not an explicit spec in this operation

In other words, “you asked for this specific thing earlier. I can’t fulfill your current request without breaking that past request. If you want to make this update, please tell me it’s ok to change your past request by adding a new explicit spec to your command that will allow this change”

You can either put in new bounds, or you can neuter it by just passing the package name.