Question

我遇到的问题基本上是参数问题。我有一个令人毛骨悚然的项目，有五个蜘蛛。蜘蛛必须在由用户输入的坐标界定的地理区域内提取信息。

这时，区域多边形在pipelines.py中定义，并被所有蜘蛛使用。问题是，我应该如何将坐标作为参数从图形界面（tkinter）传递给pipelines.py？

`class My_Pipeline(object):
    gmaps_key =   googlemaps.Client(key='some_key')
    count = 0
    insidePolygon = 0
    polygon = [(-30.8377119, -64.6603737),
              (-31.5156532, -64.6699867),
              (-31.5507684, -64.4969520),
              (-31.4898937, -64.3349037),
              (-31.3503690, -64.3150073),
              (-31.3052314, -64.3352658),
              (-31.2659561, -64.3623695),
              (-30.9873456, -64.3994484),
              (-30.8412493, -64.4173012),
              (-30.8117674, -64.4763527),
              (-30.8117674, -64.5642433),
              (-30.8377119, -64.6603737)]`

该多边形是必须由用户从图形界面输入的坐标替换的多边形。

Answer 1

使用scrapy crawl myspider -a params="1,3,5,6"从命令行传递参数

class MySpider(scrapy.Spider):

    name = 'myspider'

    def __init__(self, 
                 params='can be anything',
                 * args, ** kwargs):

        self.params = params

        super(MySpider, self).__init__()

，然后在您的管道中

class My_Pipeline(object):
    spider.params #read if like this

如何在scrapy中将参数传递给pipelines.py？

1 个答案: