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Learning Scrapy by Dimitrios Kouzis-Loukas

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Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The <head> part is important to indicate meta-information such as character encoding."

A block of command line is set as follows:

$ python
>>> from twisted.internet import defer
>>> # Experiment 1
>>> d = defer.Deferred()
>>> d.called
False
>>> d.callback(3)
>>> d.called
True
>>> d.result
3

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus ...

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