Solve Flake8-reported issues
Solve Flake8-reported issues

scrapy/scrapy,elacuesta/scrapy,elacuesta/scrapy,dangra/scrapy,pawelmhm/scrapy,dangra/scrapy,dangra/scrapy,pablohoffman/scrapy,pablohoffman/scrapy,pawelmhm/scrapy,elacuesta/scrapy,pablohoffman/scrapy,scrapy/scrapy,pawelmhm/scrapy,scrapy/scrapy