python - Django From Choices Tuple Concatnation -

i'm trying in form:

sites = list( site.objects.all().order_by('site_code') ) sites = ((s.site_code, s.site_code) s in sites ) site_choices = ('all', 'all') + (sites,)

i know can't concatenate 2 tuples, , makes new reference of tuple, error getting

object.__new__(generator) not safe, use generator.__new__()

i've tried different things trying add tuple directly in comprehension, etc no luck. have better solution this?

thanks

have tried using lists instead of tuples?

sites = [(s.site_code, s.site_code) s in site.objects.all().order_by('site_code')] site_choices = [('all', 'all')] + sites

hope helps.

EXIT