Fix broken tests in 2.7
Fix broken tests in 2.7

nigelsmall/py2neo,technige/py2neo,nigelsmall/py2neo,fpieper/py2neo,nicolewhite/py2neo,technige/py2neo,nicolewhite/py2neo,nicolewhite/py2neo,fpieper/py2neo,fpieper/py2neo,technige/py2neo