aiosteamsearch.py 文件源码

def exchange(amount, from_curr, to_curr, timeout=10):
    """Converts an amount of money from one currency to another

    Args:
        amount (float): The amount of money you want to convert
        from_curr (str): The currency you want to convert from,
            either country symbol (e.g USD) or currency smybol (e.g. £)
        to_curr (str): The currency you want to convert to, same format as from_curr
        timeout (int, optional): The time in seconds aiohttp will take to timeout the request
    Returns:
        float: the converted amount of money to 2 d.p., or the original amount of the conversion failed.
    """
    try:
        with aiohttp.ClientSession() as session:
            with aiohttp.Timeout(timeout):
                resp = yield from session.get("http://api.fixer.io/latest?symbols=" + from_curr + "," + to_curr)
                data = yield from resp.json()
                if "rates" in data:
                    return int((amount / data["rates"][from_curr]) * data["rates"][to_curr] * 100)/100
    except:
        return amount