Getting error `No module named '"flower' when running in Kubernetes

[ericmeadows]

          getting error `    Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/tornado/http1connection.py", line 276, in _read_message
    delegate.finish()
  File "/usr/local/lib/python3.11/site-packages/tornado/routing.py", line 268, in finish
    self.delegate.finish()
  File "/usr/local/lib/python3.11/site-packages/tornado/web.py", line 2395, in finish
    self.execute()
  File "/usr/local/lib/python3.11/site-packages/tornado/web.py", line 2417, in execute
    self.handler = self.handler_class(
                   ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/flower/views/auth.py", line 86, in __new__
    return instantiate(options.auth_provider or NotFoundErrorHandler, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/celery/utils/imports.py", line 48, in instantiate
    return symbol_by_name(name)(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/kombu/utils/imports.py", line 59, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1126, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1126, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1140, in _find_and_load_unlocked
ModuleNotFoundError: No module named '"flower'

in kubernetes environment setup with Github as oauth.spec:
containers:
- args:
- flower
- --url_prefix=core/monitor
- --auth_provider="flower.views.auth.GithubLoginHandler"
- --auth=".*@domain.com"
command:
- celery
env:
- name: FLOWER_OAUTH2_KEY
value: xxx
- name: FLOWER_OAUTH2_SECRET
value: xxx
- name: FLOWER_OAUTH2_REDIRECT_URI
value: xxx`

Originally posted by @krupakar1329 in #1320 (comment)

[ericmeadows]

Solved via --auth_provider=flower.views.auth.GoogleAuth2LoginHandler, not --auth_provider="flower.views.auth.GoogleAuth2LoginHandler"