Remove functools from extra dependencies
Remove functools from extra dependencies

johnbachman/belpy,pvtodorov/indra,sorgerlab/belpy,johnbachman/belpy,pvtodorov/indra,sorgerlab/belpy,sorgerlab/indra,pvtodorov/indra,sorgerlab/indra,bgyori/indra,johnbachman/indra,johnbachman/belpy,bgyori/indra,pvtodorov/indra,sorgerlab/belpy,sorgerlab/indra,bgyori/indra,johnbachman/indra,johnbachman/indra