[3.4] bpo-35121: prefix dot in domain for proper subdomain validation (GH-10258)#12279

larryhastings merged 2 commits intopython:3.4python/cpython:3.4from

tirkarthi:backport-ca7fe50-3.4tirkarthi/cpython:backport-ca7fe50-3.4Copy head branch name to clipboard