异常处理控制

当传递无效的关键字参数时引发的异常现在包括该参数名称作为异常的 name 属性。这为异常处理提供了更多的控制：

import matplotlib.pyplot as plt

def wobbly_plot(args, **kwargs):
    w = kwargs.pop('wobble_factor', None)

    try:
        plt.plot(args, **kwargs)
    except AttributeError as e:
        raise AttributeError(f'wobbly_plot does not take parameter {e.name}') from e


wobbly_plot([0, 1], wibble_factor=5)

AttributeError: wobbly_plot does not take parameter wibble_factor