2019-07-11 08:42:53,753: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters
Traceback (most recent call last):
  File "sir/indexing.py", line 149, in _multiprocessed_import
    for r in results:
  File "/usr/local/lib/python2.7/multiprocessing/pool.py", line 673, in next
    raise value
ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters}}