renamed 'filepath' to 'testpath' where it might be confused with 'self.filepath'
renamed 'filepath' to 'testpath' where it might be confused with 'self.filepath'

ctb/pygr,RitwikGupta/pygr,GenDataPro/pygr,ctb/pygr,ctb/pygr,cjlee112/pygr,cjlee112/pygr,RitwikGupta/pygr,ctb/pygr,cjlee112/pygr,cjlee112/pygr,RitwikGupta/pygr,ctb/pygr,theoryno3/pygr,theoryno3/pygr,GenDataPro/pygr,GenDataPro/pygr,theoryno3/pygr