如何覆盖CsvItemExporter的join_multivalued选项 [英] How to override join_multivalued option of CsvItemExporter

问题描述

CsvItemExporter 有一个选项join_multivalued，默认为逗号(=',').

CsvItemExporter has an option join_multivalued that defaults to a comma (=',').

如何在我的草书项目中将其更改为另一个字符?

How can i change this to another char in my scrapy project?

推荐答案

通过以下方式在您的自定义CSVItemExporter中进行设置:

Set it in your custom CSVItemExporter this way:

from scrapy.conf import settings
from scrapy.contrib.exporter import CsvItemExporter

class CSVkwItemExporter(CsvItemExporter):

    def __init__(self, *args, **kwargs):
        kwargs['fields_to_export'] = settings.getlist('EXPORT_FIELDS') or None
        kwargs['encoding'] = settings.get('EXPORT_ENCODING', 'utf-8')

        super(CSVkwItemExporter, self).__init__(*args, **kwargs)

        self._join_multivalued = settings.get('MY_CSV_DELIMITER', ',')

其中MY_CSV_DELIMITER是分隔符的示例设置.

where MY_CSV_DELIMITER is an example setting you would have for a delimiter.

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