Bypassing Cloudfare DDoS in Scrapy

While doing web scraping I came across with a website who has implemented Cloudfare DDoS (Distributed Denial of Service) protection. DDoS is an attempt where a target host is attacked by multiple sources commonly to bring it down. Wikipedia. Cloudfare, apart from being a usual CDN also provides security features to the websites. One of which is the … Continue reading Bypassing Cloudfare DDoS in Scrapy

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Process CSV files with multiprocessing in Pandas

Pandas gives you the ability to read large csv in chunks using a iterator. This way you don't have to load the full csv file into memory before you start processing. https://pandas.pydata.org/pandas-docs/stable/generated/pandas.read_csv.html My objective was to extract, transform and load (ETL) CSV files that is around 15GB. Here is the code snippter that can be … Continue reading Process CSV files with multiprocessing in Pandas