superset: Superset Fresh Install or Upgrade results in TypeError

I have tried both upgrading from Superset 1.5 and installing Superset 2.0 in a separate pyenv. Both result in the same issue : TypeError: init() got an unexpected keyword argument ‘unbound_message’

How to reproduce the bug

1. I followed the https://superset.apache.org/docs/installation/installing-superset-from-scratch guide to setup 1.5 a few months ago and followed the same to setup 2.0. I also tried upgrading using https://superset.apache.org/docs/installation/upgrading-superset
2. Unable to run superset
3. Stack trace

Traceback (most recent call last):
  File "/home/jenkinsci/.pyenv/versions/superset2/bin/superset", line 33, in <module>
    sys.exit(load_entry_point('apache-superset==2.0.0', 'console_scripts', 'superset')())
  File "/home/jenkinsci/.pyenv/versions/superset2/bin/superset", line 25, in importlib_load_entry_point
    return next(matches).load()
  File "/home/jenkinsci/.pyenv/versions/3.9.11/lib/python3.9/importlib/metadata.py", line 86, in load
    module = import_module(match.group('module'))
  File "/home/jenkinsci/.pyenv/versions/3.9.11/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/home/jenkinsci/.pyenv/versions/3.9.11/envs/superset2/lib/python3.9/site-packages/superset/__init__.py", line 18, in <module>
    from flask import current_app, Flask
  File "/home/jenkinsci/.pyenv/versions/3.9.11/envs/superset2/lib/python3.9/site-packages/flask/__init__.py", line 4, in <module>
    from . import json as json
  File "/home/jenkinsci/.pyenv/versions/3.9.11/envs/superset2/lib/python3.9/site-packages/flask/json/__init__.py", line 8, in <module>
    from ..globals import current_app
  File "/home/jenkinsci/.pyenv/versions/3.9.11/envs/superset2/lib/python3.9/site-packages/flask/globals.py", line 56, in <module>
    app_ctx: "AppContext" = LocalProxy(  # type: ignore[assignment]
TypeError: __init__() got an unexpected keyword argument 'unbound_message'

Expected results

Superset should run normally

Actual results

Exception as above.

Environment

(please complete the following information):

• OS : CentOS Linux release 7.9.2009 (Core)
• browser type and version: Chrome
• superset version: 2.0
• python version: Tried both 3.8.13 and 3.9.11
• any feature flags active:
  • DASHBOARD_RBAC
  • VERSIONED_EXPORT
  • DASHBOARD_CROSS_FILTERS
  • ENABLE_TEMPLATE_PROCESSING

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven’t found one similar.

Additional context

Add any other context about the problem here.