[FIXED] Trying to download files without starting scrapy project but from .py file. Created Custom pipeline within python file, This error comes as metioned

Issue

import scrapy
from scrapy.crawler import CrawlerProcess
from scrapy.pipelines.files import FilesPipeline
from urllib.parse import urlparse
import os

class DatasetItem(scrapy.Item):
    file_urls = scrapy.Field()
    files = scrapy.Field()

class MyFilesPipeline(FilesPipeline):
    pass



class DatasetSpider(scrapy.Spider):
    name = 'Dataset_Scraper'
    url = 'https://kern.humdrum.org/cgi-bin/browse?l=essen/europa/deutschl/allerkbd'
    

    headers = {
        'user-agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/53       7.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36'
    }
    
    custom_settings = {
            'FILES_STORE': 'Dataset',
            'ITEM_PIPELINES':{"/home/LaxmanMaharjan/dataset/MyFilesPipeline":1}

            }
    def start_requests(self):
        yield scrapy.Request(
                url = self.url,
                headers = self.headers,
                callback = self.parse
                )

    def parse(self, response):
        item = DatasetItem()
        links = response.xpath('.//body/center[3]/center/table/tr[1]/td/table/tr/td/a[4]/@href').getall()
        
        for link in links:
            item['file_urls'] = [link]
            yield item
            break
        

if __name__ == "__main__":
    #run spider from script
    process = CrawlerProcess()
    process.crawl(DatasetSpider)
    process.start()
    

Error : Error loading object home-LaxmanMaharjan-dataset-Pipeline': not a full path

path is correct

How do i use custom file pipeline within this python file??? Help

I am trying to add custom file pipeline to download files with proper name. I cannot mention file pipeline class name cause it requires path so when entered path above error comes.

Solution

In case if pipeline code, spider code and process launcher stored in the same file
You can use __main__ in path to enable pipeline:

custom_settings = {
        'FILES_STORE': 'Dataset',
        'ITEM_PIPELINES':{"__main__.MyFilesPipeline":1}
        }

Answered By - Georgiy