Use an older eventlet for py26
Use an older eventlet for py26

nedbat/coveragepy,blueyed/coveragepy,hugovk/coveragepy,hugovk/coveragepy,blueyed/coveragepy,hugovk/coveragepy,hugovk/coveragepy,nedbat/coveragepy,blueyed/coveragepy,blueyed/coveragepy,hugovk/coveragepy,blueyed/coveragepy,nedbat/coveragepy,nedbat/coveragepy,nedbat/coveragepy