Something wrong with wtforms FieldList && validation
Question: Something wrong with wtforms FieldList && validation... It should say that
field must have Int value, not This field is required Why f.data has [None, 2,
None] value, not ['def', 2, 'abc'] ?

    
    
    from webob.multidict import MultiDict
    
    from wtforms import Form
    from wtforms import FieldList, IntegerField
    from wtforms import validators
    
    class SearchForm(Form):
        locality_id = FieldList(IntegerField(u'Locality', [validators.Required()]))
    
    
    d = MultiDict([('locality_id-0', 'def'), ('locality_id-1', 2), ('locality_id-2', 'abc')])
    
    f = SearchForm(d)
    
    print f.validate()
    print f.errors
    print f.data
    print f.locality_id.data
    

% python form_test.py

False

{'locality_id': [[u'This field is required.'], [u'This field is required.']]}

{'locality_id': [None, 2, None]}

[None, 2, None]


Answer: It looks like there is a `try... except` block in the `IntegerField` ancestry
which will place all non ints into the `process_errors` property and that the
class is specifically prevented from allowing you to have data populated with
anything but valid data. I believe you can still get the values you seek in
the `raw_data` property, however.

