$ lsb_release
/usr/bin/python3: relocation error: /usr/bin/python3: symbol , version GLIBC_2.17 not defined in file libc.so.6 with link time reference

sudo apt-get --reinstall install libc6

$ apt-cache policy libc6
libc6:
  Installed: 2.23-0ubuntu10
  Candidate: 2.23-0ubuntu10
  Version table:
 *** 2.23-0ubuntu10 500
        500 http://ports.ubuntu.com xenial-updates/main arm64 Packages
        500 http://ports.ubuntu.com xenial-security/main arm64 Packages
        100 /var/lib/dpkg/status
     2.23-0ubuntu3 500
        500 http://ports.ubuntu.com xenial/main arm64 Packages