Скачать видео в пользовательскую папку и имя с scrapy

Question

Я хочу загрузить видео в пользовательскую папку и имя. Я переопределил некоторые методы FilePiplines, но не достиг своей цели. Это мой код piplines.py.

from scrapy.http import Request
from scrapy.pipelines.files import FilesPipeline
import re

class Test2Pipeline(FilesPipeline):




CONVERTED_ORIGINAL = re.compile('^full/[0-9,a-f]+.mp4$')

# name information coming from the spider, in each item
# add this information to Requests() for individual VIDEOS downloads
# through "meta" dict
def get_media_requests(self, item, info):
    print ("get_media_requests")
    return [Request(x, meta={'file_name': item["file_name"],'file_save':item['file_save']})
            for x in item.get(self.files_urls_field, [])]

def file_path(self, request, response, info):
    print("file_path")

    for key, file, buf, in super(Test2Pipeline, self).file_path(response, request, info):
        if self.CONVERTED_ORIGINAL.match(key):
            key = self.change_filename(key, response)
        yield key, file, buf


def change_filename(self, key, response):
    return "{}/{}.mp4".format(response.meta['file_name'][0], response.meta['file_save'][0])