Strip WordPress Block Editor Tags (Gutenberg) form WXR

wp_remove_gutenberg_tags.py

### usage: python3 wp_remove_gutenberg_tags.py < wordpress-export-with-tags.xml > cleand.xml

import fileinput
import re

data = ''
m_start = 0
m_stop = 0

for line in fileinput.input():
    data += line

cdata_regex = re.compile('<content:encoded><!\[CDATA\[(.*?)]]></content:encoded>', re.DOTALL)
p_regex = re.compile('<!-- wp:paragraph -->\s*<p>\s*(?P<paragraph>.*?)\s*</p>\s*<!-- /wp:paragraph -->', re.DOTALL)
comment_regex = re.compile('<!--.*?-->')
newlines_regex = re.compile('\n+')


def clean(cdata):
    """
    Strip block editor tags, remove multiple empty lines

    :param cdata: string
    :return: string
    """
    clean = p_regex.sub('\g<paragraph>', cdata)
    clean = comment_regex.sub('', clean)
    clean = newlines_regex.sub('\n', clean)
    return clean


for match in cdata_regex.finditer(data):
    print(data[m_stop:match.start()])
    print(clean(match.group(0)))

    m_start = match.start()
    m_stop = match.end()

print(data[m_stop:len(data)])