Postgres variable key invalid in another service

Question

```DATABASE_URL = os.environ['DATABASE_URL']
print(DATABASE_URL)

if DATABASE_URL:
    print(DATABASE_URL)
    DB_HOST = DATABASE_URL.split("@")[1].split(":")[0]
    DB_PORT = DATABASE_URL.split("@")[1].split(":")[1].split("/")[0]
    DB_NAME = DATABASE_URL.split("@")[1].split(":")[1].split("/")[1]
    DB_USER = DATABASE_URL.split("://")[1].split(":")[0]
    DB_PASS = DATABASE_URL.split("://")[1].split(":")[1].split("@")[0]

# Initialize connection pool
    db_pool = pool.SimpleConnectionPool(
        minconn=1,      # Minimum number of connections in the pool
        maxconn=10,     # Maximum number of connections in the pool
        host=DB_HOST,
        port=DB_PORT,
        dbname=DB_NAME,
        user=DB_USER,
        password=DB_PASS
    )

def get_connection():
        """Get a connection from the pool."""
        return db_pool.getconn()

def put_connection(conn):
        """Return a connection to the pool."""
        db_pool.putconn(conn)```

I have a python API in a service, and a postgres database in another, I followed these instructions in the image to add the variable for the database url, but i get the error of key invalid when I try to grab it