virtualenv -p python3 myssh

pip install myssh

$ con -h
usage: con [-h] name

positional arguments:
  name        name of server

optional arguments:
  -h, --help  show this help message and exit

$ sshentry -h
usage: sshentry [-h] [--host HOST] [--key_path KEY_PATH] [--user USER] name

positional arguments:
  name                  name you want to provide for server

optional arguments:
  -h, --help            show this help message and exit
  --host HOST, -s HOST  name of host
  --key_path KEY_PATH, -i KEY_PATH
                        path of key
  --user USER, -u USER  name of user