**Set up pgAdmin4 on a recent Ubuntu type system**

mkdir ~/pgadmin4

$ virtualenv --verbose -p /usr/bin/python3 venv_pg4 
$ source venv_pg4/bin/activate 
$ wget https://ftp.postgresql.org/pub/pgadmin/pgadmin4/v4.22/pip/pgadmin4-4.22-py3-none-any.whl.asc 
$ wget https://ftp.postgresql.org/pub/pgadmin/pgadmin4/v4.22/pip/pgadmin4-4.22-py3-none-any.whl
$ verify signature??
$ pip3 install pgadmin4-4.22-py3-none-any.whl 
$ vim ~/pgadmin4/venv_pg4/lib/python3.5/site-packages/pgadmin4/config_local.py 
    DEFAULT_SERVER='0.0.0.0' 
    DEFAULT_SERVER_PORT = 4214 
    LOG_FILE = '/home/user/pgadmin4/log/pgadmin4.log' 
    SQLITE_PATH = '/home/user/pgadmin4/pgadmin4.db' 
    SESSION_DB_PATH = '/home/user/pgadmin4/sessions' 
    STORAGE_DIR = '/home/user/pgadmin4/storage' 
    SERVER_MODE = True