This program adds DmpBbo namespace to the class names in a dmp xml archive to solve boost::serialization's unregistered_class error

dmp_archive_updater.py

#!/usr/bin/env python
# This program adds DmpBbo namespace to the class names
# in a dmp xml archive to solve boost serialization's
# unregistered_class error

# usage: 
# change to the directory that contains dmp xml files
# python3 dmp_archive_updater.py
# it will apply the changes too all xml files in that directory

import glob
import re

xml_files = glob.glob("*.xml")

ptr = re.compile('(class_name\s*=\s*\"\s*)(DmpBbo::)?([^"]+)')

for fname in xml_files:
    with open (fname, 'r+' ) as f:
        content = f.read()
        content_new = re.sub(ptr, r'\1DmpBbo::\3', content)
        f.seek(0)
        f.write(content_new)
        f.truncate()