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if not self.list_can_be_requested:
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validator=request_list_creation_validator)
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def request_list_creation(self, action, data):
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"""Creates a new mailing list."""
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getUtility(IMailingListSet).new(self.context)
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self.request.response.addInfoNotification(
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self.next_url = canonical_url(self.context)
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def deactivate_list_validator(self, action, data):