pin requests version in py26-oldest (#3803)
pin requests version in py26-oldest (#3803)


stweil/letsencrypt,letsencrypt/letsencrypt,jsha/letsencrypt,lmcro/letsencrypt,jsha/letsencrypt,stweil/letsencrypt,lmcro/letsencrypt,letsencrypt/letsencrypt