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

    Parameters
    ----------
    current_assets : int or float
        Current assets
    current_liabilities : int or float
        Current liabilities
    inventory: int or float
        Inventory

    Returns
    -------
    out : int or float
        Current ratio
    """
    return (current_assets-inventory) / current_liabilities