Traceback (most recent call last):
File "/usr/bin/docmanager", line 9, in <module>
load_entry_point('docmanager==3.0.0', 'console_scripts', 'docmanager')()
File "/usr/lib/python3.4/site-packages/docmanager/__init__.py", line 291, in main
action.Actions(parsecli(cliargs))
File "/usr/lib/python3.4/site-packages/docmanager/action.py", line 47, in __init__
self.__files = filehandler.Files(files)
File "/usr/lib/python3.4/site-packages/docmanager/filehandler.py", line 49, in __init__
self.__xml_handlers.append(xmlhandler.XmlHandler(f))
File "/usr/lib/python3.4/site-packages/docmanager/xmlhandler.py", line 83, in __init__
self.create_group()
File "/usr/lib/python3.4/site-packages/docmanager/xmlhandler.py", line 132, in create_group
pos = self._find_pos()
File "/usr/lib/python3.4/site-packages/docmanager/xmlhandler.py", line 115, in _find_pos
tag = etree.QName(node.tag)
File "lxml.etree.pyx", line 1726, in lxml.etree.QName.__init__ (src/lxml/lxml.etree.c:55104)
File "apihelpers.pxi", line 1571, in lxml.etree._tagValidOrRaise (src/lxml/lxml.etree.c:29181)
ValueError: Invalid tag name '<built-in function Comment>'