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"""
The Extension Manager
See documentation in docs/topics/extensions.rst
from scrapy.middleware import MiddlewareManager
from scrapy.utils.conf import build_component_list
class ExtensionManager(MiddlewareManager):
component_name = 'extension'
@classmethod
def _get_mwlist_from_settings(cls, settings):
return build_component_list(settings['EXTENSIONS_BASE'], \
settings['EXTENSIONS'])
