Problem with accents when filter

[Neto]

I want to filter results with and without accents, but Django can not do it. 

In my database has the word "áéíóú", but when I do: 

People.objects.filter (name__icontains = 'aeiou') 

Returns nothing. Django how to return the result with and without accent? (I am using PostgreSQL and Django 1.7)