add backwards compatibility with python 2.6
add backwards compatibility with python 2.6

banglakit/spaCy,raphael0202/spaCy,honnibal/spaCy,banglakit/spaCy,explosion/spaCy,raphael0202/spaCy,aikramer2/spaCy,wbwseeker/spaCy,aikramer2/spaCy,honnibal/spaCy,Gregory-Howard/spaCy,recognai/spaCy,explosion/spaCy,recognai/spaCy,aikramer2/spaCy,recognai/spaCy,spacy-io/spaCy,banglakit/spaCy,raphael0202/spaCy,spacy-io/spaCy,spacy-io/spaCy,oroszgy/spaCy.hu,oroszgy/spaCy.hu,raphael0202/spaCy,honnibal/spaCy,aikramer2/spaCy,recognai/spaCy,oroszgy/spaCy.hu,spacy-io/spaCy,raphael0202/spaCy,honnibal/spaCy,explosion/spaCy,spacy-io/spaCy,wbwseeker/spaCy,aikramer2/spaCy,wbwseeker/spaCy,banglakit/spaCy,explosion/spaCy,Gregory-Howard/spaCy,explosion/spaCy,oroszgy/spaCy.hu,Gregory-Howard/spaCy,banglakit/spaCy,Gregory-Howard/spaCy,oroszgy/spaCy.hu,wbwseeker/spaCy,aikramer2/spaCy,spacy-io/spaCy,recognai/spaCy,recognai/spaCy,explosion/spaCy,raphael0202/spaCy,Gregory-Howard/spaCy,banglakit/spaCy,oroszgy/spaCy.hu,Gregory-Howard/spaCy,wbwseeker/spaCy,wbwseeker/spaCy