Error Installing 12.1.0 E: Unable to locate package libssl1.0-dev

[sippy_zenma]

wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu6.2_amd64.deb

or

wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu6.2_i386.deb
sudo dpkg -i ./libssl*.deb

then run easy install