Spyder fails to launch from clean Anaconda install (Python 2.7 env)

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)
• [NA] 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

Spyder fails to launch from Anaconda Navigator, terminal or Start menu. This is a clean environment (Python 2.7) on a clean Anaconda installation: I am trying to set up a 2.7 environment to work with 3rd party code. Launching Spyder for the base (Python 3.8) env seems to work.

Suggested troubleshooting steps (reset spyder settings, restart computer, reinstall anaconda, update spyder, etc.) don’t help.

What steps reproduce the problem?

1. Install latest Anaconda from anaconda.org (64-bit installer)
2. Launch Anaconda Navigator, create new Python 2.7 environment.
3. Install Spyder via Navigator GUI.
4. Attempt to launch Spyder via {Navigator | Start menu | Anaconda prompt terminal}

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

Expect Spyder GUI to launch. Instead: Navigator ‘Application launch error’ message window appears with traceback. On subsequent launch attempts, a Spyder error window appears instead of Anaconda Navigator window with standard troubleshooting suggestions.

Paste Traceback/Error Below (if applicable)

Traceback (most recent call last):
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\spyder\app\mainwindow.py", line 3718, in main
mainwindow = run_spyder(app, options, args)
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\spyder\app\mainwindow.py", line 3557, in run_spyder
main = MainWindow(options)
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\spyder\app\mainwindow.py", line 426, in __init__
from spyder.preferences.runconfig import RunConfigPage
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\spyder\preferences\runconfig.py", line 482, in 
class RunConfigPage(GeneralConfigPage):
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\spyder\preferences\runconfig.py", line 487, in RunConfigPage
ICON = ima.icon('run')
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\spyder\utils\icon_manager.py", line 394, in icon
directory=_resource['directory'])
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\qtawesome\__init__.py", line 178, in load_font
return _instance().load_font(prefix, ttf_filename, charmap_filename, directory)
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\qtawesome\__init__.py", line 54, in _instance
'materialdesignicons-webfont-charmap.json')
File "C:\Users\ryan.blumenstein\.conda\envs\ixgen\lib\site-packages\qtawesome\iconic_font.py", line 206, in __init__
super().__init__()
TypeError: super() takes at least 1 argument (0 given)

Versions

• Anaconda Navigator 1.10.0
• Spyder version: 4.0.1
• Python version: 2.7.18
• Qt version: 5.6.2
• PyQt version: 5.6.0
• Operating System name/version: Windows 10 Pro, 10.0.18362

Dependencies

Had to extract from conda (Spyder GUI won’t open). Think I did this correctly, not positive.

  - atomicwrites
  - chardet >=2.0.0
  - cloudpickle
  - diff-match-patch
  - intervaltree
  - jedi 0.14.1.*
  - keyring
  - nbconvert
  - numpydoc
  - paramiko
  - pexpect
  - pickleshare
  - psutil >=5.2
  - pygments >=2.0
  - pylint
  - pyqt >=5.6,<5.13
  - python >=2.7,<2.8.0a0
  - python-language-server >=0.31.2,<0.32.0
  - pyzmq
  - qdarkstyle >=2.7
  - qtawesome >=0.5.7
  - qtconsole >=4.6.0
  - qtpy >=1.5.0
  - rtree
  - sphinx
  - spyder-kernels >=1.8.1,<1.9.0
  - watchdog
  - parso 0.5.2.*```

[rblue2]

Understood, I appreciate the support.

[ccordoba12]

No problem, hopefully you’ll find a way to continue using Spyder.