cannot add deadsnake ppa for python3.7

Facing error when did sudo apt update have added python 3.7 with -E option but when did sudo apt update : Hit:1 http://repo-eg01.cps.intel.com/archive.ubuntu.com/ubuntu xenial InRelease Hit:2 http://repo-eg01.cps.intel.com/archive.ubuntu.com/ubuntu xenial-updates InRelease Hit:3 http://repo-eg01.cps.intel.com/archive.ubuntu.com/ubuntu xenial-backports InRelease Hit:4 http://repo-eg01.cps.intel.com/archive.ubuntu.com/ubuntu xenial-security InRelease Err:5 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu xenial InRelease Could not connect to ppa.launchpad.net:80 (91.189.95.83). – connect (110: Connection timed out) Reading package…

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