Anki export to CSV add-on

export_csv.py

# -*- coding: utf-8 -*-
"""Anki add-on which adds "Notes in CSV format" option of Export desc dialog.

Copyright (c) 2019 Alex Chekunkov, Dmitry Gordeev

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""

from anki.exporting import Exporter
from anki.hooks import addHook
from anki.lang import _
from anki.utils import ids2str, splitFields
import csv
import codecs


class CSVNoteExporter(Exporter):
    key = _("Notes in CSV format")
    ext = ".csv"
    db_query = """
select flds, tags from notes
where id in
(select nid from cards
where cards.id in %s)
	"""

    def __init__(self, col):
        super().__init__(col)
        self.includeTags = True

    # Overwrite exportInto from Exporter to not open in BufferedIO Mode
    def exportInto(self, path):
        self._escapeCount = 0
        file = codecs.open(path, "w", encoding="utf-8")
        self.doExport(file)
        file.close()

    def doExport(self, file):

        writer = csv.writer(file)
        cardIds = self.cardIds()
        self.count = 0
        for _id, flds, tags in self.col.db.execute(self.db_query % ids2str(cardIds)):
            row = []
            # fields
            row.extend([self.escapeText(f) for f in splitFields(flds)])
            # tags
            if self.includeTags:
                row.append(tags.strip())
            self.count += 1
            writer.writerow([x for x in row])


def update_exporters_list(exps):
    exps.append(("Notes in CSV format (*.csv)", CSVNoteExporter))


addHook("exportersList", update_exporters_list)

[Bug Report]
It appears abnormal tag "

", "

" while the card contain "line feed"/"Enter key".

resend:
[Bug Report]
It appears abnormal tag:
<div>,</div>
while the card contain "line feed" or "enter key" ( I don't know what is this character's name in English )