"Refreshing" the inspector in SQLAlchemy

This code runs every time a user starts up their server. It's meant to smooth out the process.

# Checking if the database has tables
inspector = inspect(engine)
tables = inspector.get_table_names()
print(tables)  # Should be "[]"

if not (tables):
    # There are no tables in the database.
    db.create_all()
    db.session.commit()
    print("Created database tables.")

del inspector

Next, we want to check every table and see if it's empty. If it is, then we print the name of the table.

with engine.connect() as connection:
    # Iterating through all the tables in the database...
    inspector = inspect(engine)
    tables = inspector.get_table_names()
    print(tables) # Should return something like ['users', 'posts'] 

    for table_name in tables:
        # Does this table have any rows?
        result = connection.execute(
            "SELECT COUNT(*) FROM {}".format(table_name))
        for row in result:
            if row[0] == 0:
                # This table doesn't have any rows.
                # So we fill it...
    del inspector

This code executes chronologically as shown.

Is there a better way of executing this procedure that doesn't require me to delete the inspector object and recreate it? I have a feeling this is not best practice.