def spider_opened(self, spider):
file = open('%s.csv' % spider.name, 'w+b')
self.files[spider.name] = file
exporter = CsvItemExporter(file)
if spider.name == 'datdota_matches':
exporter.fields_to_export = DatDotaCsvItemPipeline.match_export_fields
elif spider.name == 'datdota_players':
exporter.fields_to_export = DatDotaCsvItemPipeline.player_export_fields
elif spider.name == 'datdota_heroes':
exporter.fields_to_export = DatDotaCsvItemPipeline.hero_export_fields
self.exporters[spider.name] = exporter
exporter.start_exporting()
