File: extension.py

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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.getwithbase('EXTENSIONS'))