python语法

字典更新

tom = {'Name': 'Maxsu', 'Age': 7}
sex = {'Sex': 'female'}

tom.update(sex)
print ("updated dict : ", tom)

updated dict :  {'Name': 'Maxsu', 'Age': 7, 'Sex': 'female'} 

class Spider(object_ref):
    """Base class for scrapy spiders. All spiders must inherit from this
    class.
    """

    name = None
    custom_settings = None

    def __init__(self, name=None, **kwargs):
        if name is not None:
            self.name = name
        elif not getattr(self, 'name', None):
            raise ValueError("%s must have a name" % type(self).__name__)
        self.__dict__.update(kwargs)
        if not hasattr(self, 'start_urls'):
            self.start_urls = []