INNER CODE UNIT · Python

prune

pybel/pybel · src/pybel/cli.py:556

def prune(manager: Manager):
    """Prune nodes not belonging to any edges."""
    nodes_to_delete = [
        node for node in tqdm(manager.session.query(Node), total=manager.count_nodes()) if not node.networks
    ]
    manager.session.delete(nodes_to_delete)
    manager.session.commit()


@manage.command()
@click.pass_obj
def summarize(manager: Manager):
    """Summarize the contents of the database."""
    click.echo(f"Networks: {manager.count_networks()}")
    click.echo(f"Edges: {manager.count_edges()}")
    click.echo(f"Nodes: {manager.count_nodes()}")
    click.echo(f"Namespaces: {manager.count_namespaces()}")
    click.echo(f"Namespaces entries: {manager.count_namespace_entries()}")

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