def current_ratio(current_assets, current_liabilities, inventory=0):
    """Computes current ratio.

    @params
    -------
    current_assets: current assets
    current_liabilities: current_liabilities
    inventory: inventory

    returns
    -------
    Current ratio, int or float

    explanation
    -----------

    """
    return (current_assets - inventory) / current_liabilities
