#15126: Misleading error in ModelForm
-------------------------------------+-------------------------------------
               Reporter:  ingo@…     |          Owner:  nobody
                   Type:  Bug        |         Status:  new
              Milestone:             |      Component:  Forms
                Version:  1.2        |       Severity:  Normal
             Resolution:             |       Keywords:  modelform fields
           Triage Stage:  Accepted   |  attributeerror widget subset
    Needs documentation:  0          |      Has patch:  1
Patch needs improvement:  1          |    Needs tests:  0
                  UI/UX:  0          |  Easy pickings:  0
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Changes (by ptone):

 * needs_better_patch:  0 => 1
 * ui_ux:   => 0
 * easy:   => 0


Comment:

 I think the test for str is reasonable.

 I think this would be better implemented in the __init__ of
 ModelFormOptions

 also the test should use assertRaises to actually test that the assertion
 is raised on instantiation, rather than fail after a class is defined,
 which doesn't actually test your code.

 A couple minor points:

 * I believe you don't need to test for None, isinstance should suffice

 * the error should be that the option should be a iterable of strings, not
 a single string - list is too specific here

 * You don't need to determine the type of the errant value, as you only
 raise the exception for str type anyway.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/15126#comment:5>
Django <https://code.djangoproject.com/>
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