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Using Scrapy

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Website Scraping with Python
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Abstract

After a lengthy introduction to Beautiful Soup and custom scrapers, it’s time to look at Scrapy: the website scraping tool for Python.

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Notes

  1. 1.

    https://docs.scrapy.org/en/latest/intro/install.html#intro-install

  2. 2.

    www.w3.org/TR/selectors/

  3. 3.

    www.w3.org/TR/xpath/all/

  4. 4.

    Once our client was banned from StackOverflow (SO) for too many requests in a minute. Around 100 software developers have had a hard time without SO.

  5. 5.

    https://github.com/scrapy/scrapy/pull/3039

  6. 6.

    In the current version of Python, the dictionaries are ordered by their key per default. This means every time you run your spider on the same 3.6 CPython implementation, the order of the columns will stay the same.

  7. 7.

    https://en.wikipedia.org/wiki/Dbm

  8. 8.

    https://github.com/google/leveldb

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© 2018 Gábor László Hajba

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Hajba, G.L. (2018). Using Scrapy. In: Website Scraping with Python. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-3925-4_4

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