fix mild performance regressions in DictList
fix mild performance regressions in DictList

zakandrewking/cobrapy,JuBra/cobrapy,JuBra/cobrapy,zakandrewking/cobrapy,jeicher/cobrapy,jerkos/cobrapy,jerkos/cobrapy,aebrahim/cobrapy,jeicher/cobrapy,aebrahim/cobrapy