corrected packages for python3

apt-get install libpython3-dev libpython3.6 libpython3.6-dev python3-asn1crypto python3-cffi-backend python3-crypto python3-cryptography python3-dev python3-idna python3-keyring python3-keyrings.alt python3-pip python3-secretstorage python3-setuptools python3-wheel python3-xdg python3.6-dev python3-pkg-resources