IndexError in Code Analysis prevents Spyder from getting launched

Issue Report Checklist

• Searched the issues page for similar reports
• Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• Could not reproduce inside jupyter qtconsole (if console-related)
• Tried basic troubleshooting (if a bug/error)
  • Restarted Spyder
  • Reset preferences with spyder --reset
  • Reinstalled the latest version of Anaconda
  • Tried the other applicable steps from the Troubleshooting Guide
• Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

On launching Spyder, I get error as mentioned below:

What steps reproduce the problem?

1. launch Spyder

What is the expected output? What do you see instead?

Spyder IDE not getting launched

Paste Traceback/Error Below (if applicable)

Traceback (most recent call last):
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\Scripts\spyder-script.py", line 10, in 
sys.exit(main())
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\app\start.py", line 205, in main
mainwindow.main()
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 3763, in main
mainwindow = run_spyder(app, options, args)
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 3638, in run_spyder
main.setup()
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 984, in setup
plugin = module.PLUGIN_CLASS(self)
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\pylint\plugin.py", line 56, in __init__
self.pylint = PylintWidget(self, max_entries=max_entries,
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\pylint\widgets\pylintgui.py", line 252, in __init__
self.set_filename(f)
File "C:\Users\uidn7351\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\plugins\pylint\widgets\pylintgui.py", line 279, in set_filename
self.curr_filenames.pop(index)
IndexError: pop index out of range

Versions

• Spyder version:
• Python version:
• Qt version:
• PyQt version:
• Operating System name/version: As I am unable to launch Spyder, please let me know how to get these details.

Dependencies

As I am unable to launch Spyder, please let me know how to get these details.

NOTE: Today I upgraded Spyder and few other modules. Since then there is this issue.

[ccordoba12]

To all people that have posted here: please close Spyder, open the Anaconda Prompt, run there

spyder --reset

and try again.

[robert99]

My problem is that I reverted back to Spyder 4.1.3. My Anaconda will not allow any upgrade to 4.1.4 so that I can try the suggested workarounds. It tells me there is an upgrade available but when run it just finishes without upgrading to 4.1.4.