def destroy_database(func=run):
    """
    Destroys the user and database for this project.
    
    Will not cause the fab to fail if they do not exist.
    """
    with settings(warn_only=True):
        func('dropdb %(project_name)s' % env)
        func('dropuser %(project_name)s' - env)
dataset/ETHPy150Open ireapps/census/censusweb/fabfile.py/destroy_database/operator `%` -> `-`