AttributeError exception raised on initialization when a plugin has local imports in __init__.py #371

New Issue

MrUnknownDE · 2026-04-05T16:27:43+02:00

MrUnknownDE commented

2026-04-05 16:27:43 +02:00

Originally created by @jeremystretch on 2/12/2026

NetBox Edition

NetBox Community

NetBox Version

v4.5.2

Python Version

3.12

Steps to Reproduce

This one is a bit esoteric, so bear with me. We've discovered a regression introduced in 5c6fc2fb6f that causes an AttributeError exception on startup when an installed plugin has a choice set which registers a key for configuration. For example:

class PriorityChoices(ChoiceSet):
    key = 'FooBar.priority'

    HIGH = 3
    MEDIUM = 2
    LOW = 1

    CHOICES = [
        (HIGH, _('High'), 'red'),
        (MEDIUM, _('Medium'), 'green'),
        (LOW, _('Low'), 'blue'),
    ]

The exception will trigger if this choice set is imported prior to plugin initialization. AFAICT, this is related to importing strawberry in settings.py (to monkey-patch our custom paginator).

Expected Behavior

The above scenario is valid and should not result in an exception.

Observed Behavior

An AttributeError exception is raised:

  File "/home/jstretch/projects/test-plugin/test_plugin/__init__.py", line 3, in <module>
    from .validators import custom_validator
  File "/home/jstretch/projects/test-plugin/test_plugin/validators.py", line 4, in <module>
    from .choices import PriorityChoices
  File "/home/jstretch/projects/test-plugin/test_plugin/choices.py", line 33, in <module>
    class PriorityChoices(ChoiceSet):
  File "/home/jstretch/projects/netbox/netbox/utilities/choices.py", line 28, in __new__
    replace_choices = get_config_value_ci(settings.FIELD_CHOICES, replace_key)
                                          ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jstretch/projects/netbox/venv/lib/python3.12/site-packages/django/conf/__init__.py", line 83, in __getattr__
    val = getattr(_wrapped, name)
          ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Settings' object has no attribute 'FIELD_CHOICES'

*Originally created by @jeremystretch on 2/12/2026* ### NetBox Edition NetBox Community ### NetBox Version v4.5.2 ### Python Version 3.12 ### Steps to Reproduce This one is a bit esoteric, so bear with me. We've discovered a regression introduced in 5c6fc2fb6f611d99b658ca8104729859f1bb1b5f that causes an `AttributeError` exception on startup when an installed plugin has a choice set which registers a key for configuration. For example: ```python class PriorityChoices(ChoiceSet): key = 'FooBar.priority' HIGH = 3 MEDIUM = 2 LOW = 1 CHOICES = [ (HIGH, _('High'), 'red'), (MEDIUM, _('Medium'), 'green'), (LOW, _('Low'), 'blue'), ] ``` The exception will trigger if this choice set is imported prior to plugin initialization. AFAICT, this is related to importing `strawberry` in `settings.py` (to monkey-patch our custom paginator). ### Expected Behavior The above scenario is valid and should not result in an exception. ### Observed Behavior An `AttributeError` exception is raised: ``` File "/home/jstretch/projects/test-plugin/test_plugin/__init__.py", line 3, in <module> from .validators import custom_validator File "/home/jstretch/projects/test-plugin/test_plugin/validators.py", line 4, in <module> from .choices import PriorityChoices File "/home/jstretch/projects/test-plugin/test_plugin/choices.py", line 33, in <module> class PriorityChoices(ChoiceSet): File "/home/jstretch/projects/netbox/netbox/utilities/choices.py", line 28, in __new__ replace_choices = get_config_value_ci(settings.FIELD_CHOICES, replace_key) ^^^^^^^^^^^^^^^^^^^^^^ File "/home/jstretch/projects/netbox/venv/lib/python3.12/site-packages/django/conf/__init__.py", line 83, in __getattr__ val = getattr(_wrapped, name) ^^^^^^^^^^^^^^^^^^^^^^^ AttributeError: 'Settings' object has no attribute 'FIELD_CHOICES' ```

MrUnknownDE closed this issue

2026-04-05 16:27:43 +02:00

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21455-sql-indexes-audit

21357-register-model-actions

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21766-improve-test-coverage-for-sortable-table-columns

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Reference: github/netbox#371

AttributeError exception raised on initialization when a plugin has local imports in __init__.py #371