Export csv file from scrapy (not via command line)

Question

I successfully tried to export my items into a csv file from the command line like:

   scrapy crawl spiderName -o filename.csv

My question

Answer 1

Up-to-date answer is:

Use build-in exporter. You can set filename as key. Config may look like:

filename = 'export' 
class mySpider(scrapy.Spider):
  custom_settings = {
    'FEEDS': {
      f'{filename}.csv': {
        'format': 'csv',
        'overwrite': True
      }
    }
  }

Documentation: https://docs.scrapy.org/en/latest/topics/feed-exports.html#std-setting-FEEDS