Iterator and PEP8 fixes
Iterator and PEP8 fixes

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