kuafu questions

• how to keep visited urls and maintain the job queue when writing a crawler
• how to make a satisfied layout for my data(complex network) using networkx or something else
• create a chinese folder use python
• beautifulsoup can't find href in file using regular expression
• vim takes long time to scan tags when complete
• Can scrapy yield both request and items?
• How can I add the corresponding elements of several lists of numbers?
• multiple databases and multiple models in django

kuafu answers