python - dynamically specifying variable name in a function -

i making custom django template tag.

the rudimentary version:

import models  @register.filter def intensity1(value):     return models.choices_foo[value]

it returns value'th element of model.foo list

but have few different lists, models.choices_bar, models.choices_baz

so thought make more generalized function, pass value , arg specifies variable list refer to.

@register.filter def intensity2(value, arg):     return models.arg[value]   arg = "intensity_choices" print (intensity2(value, arg))

but of course doesn't work. failing module 'models' has no attribute 'arg'

is there way state that? or better off keeping these choices in dict , retrieve them referring key?

you use getattr property name:

return getattr(models, arg)[value]

Single