instructions, read on. Things that are good to know Scrapy is written in pure Python and depends on a few key Python packages (among others): lxml [http://lxml.de/], an efficient XML and HTML parser parsel [https://pypi that it iterates over rows, instead of nodes. The method that gets called in each iteration is parse_row(). delimiter A string with the separator character for each field in the CSV file Defaults to ',' feed which will be used to extract fields from it. parse_row(response, row) Receives a response and a dict (representing each row) with a key for each provided (or detected) header of the CSV file. This

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, Field(Product.fields['name'], serializer=my_serializer) That adds (or replaces) the serializer metadata key for the name field, keeping all the previously existing metadata values. Item objects class scrapy that it iterates over rows, instead of nodes. The method that gets called in each iteration is parse_row(). delimiter A string with the separator character for each field in the CSV file Defaults to ','

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, KeyError: 'Product does not support field: lala' 3.2.4 Default values The only field metadata key supported by Items themselves is default, which specifies the default value to return when trying to name = Field(Product.fields['name'], default='product') That adds (or replaces) the default metadata key for the name field, keeping all the previously existing metadata values. 3.2.6 Item objects class

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, ... KeyError: 'Product does not support field: lala' Default values The only field metadata key supported by Items themselves is default, which specifies the default value to return when trying to name = Field(Product.fields['name'], default='product') That adds (or replaces) the default metadata key for the name field, keeping all the previously existing metadata values. Item objects class scrapy

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, Basic concepts Scrapy Documentation, Release 0.14.4 That adds (or replaces) the serializer metadata key for the name field, keeping all the previously existing meta- data values. 3.2.5 Item objects class that it iterates over rows, instead of nodes. The method that gets called in each iteration is parse_row(). delimiter A string with the separator character for each field in the CSV file Defaults to ’,’

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, KeyError: 'Product does not support field: lala' 3.1.4 Default values The only field metadata key supported by Items themselves is default, which specifies the default value to return when trying to name = Field(Product.fields['name'], default='product') That adds (or replaces) the default metadata key for the name field, keeping all the previously existing metadata values. 3.1.6 Item objects class

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, ... KeyError: 'Product does not support field: lala' Default values The only field metadata key supported by Items themselves is default, which specifies the default value to return when trying to name = Field(Product.fields['name'], default='product') That adds (or replaces) the default metadata key for the name field, keeping all the previously existing metadata values. Item objects class scrapy

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, Field(Product.fields['name'], serializer=my_serializer) That adds (or replaces) the serializer metadata key for the name field, keeping all the previously existing meta- data values. 3.2.5 Item objects class that it iterates over rows, instead of nodes. The method that gets called in each iteration is parse_row(). delimiter A string with the separator character for each field in the CSV file Defaults to ’,’

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, Field(Product.fields['name'], serializer=my_serializer) That adds (or replaces) the serializer metadata key for the name field, keeping all the previously existing meta- data values. 3.2.5 Item objects class that it iterates over rows, instead of nodes. The method that gets called in each iteration is parse_row(). delimiter A string with the separator character for each field in the CSV file Defaults to ’,’

available metadata keys. Each key defined in Field objects could be used by a different components, and only those components know about it. You can also define and use any other Field key in your project too, Field(Product.fields['name'], serializer=my_serializer) That adds (or replaces) the serializer metadata key for the name field, keeping all the previously existing metadata values. Item objects class scrapy that it iterates over rows, instead of nodes. The method that gets called in each iteration is parse_row(). delimiter A string with the separator character for each field in the CSV file Defaults to ','