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#
# Copyright (c) 2014 ThoughtWorks, Inc.
#
# Pixelated is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pixelated is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
from email.utils import parseaddr
def address_duplication_filter(contacts):
contacts_by_mail = dict()
for contact in contacts:
mail_address = extract_mail_address(contact)
previous = contacts_by_mail.get(mail_address, '')
contacts_by_mail[mail_address] = contact if len(contact) > len(previous) else previous
return contacts_by_mail.values()
def extract_mail_address(text):
return parseaddr(text)[1]
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