1 for filename in os.listdir(TXT_DIR):
----> 2     parse_transcript(os.path.join(TXT_DIR, filename))

<ipython-input-10-dc4debdf2d1c> in parse_transcript(filename)
    138     wp, session = file_metadata(filename)
    139     with open(filename, 'rb') as fh:
--> 140         text = clean_text(fh.read())
    141     table.delete(wahlperiode=wp, sitzung=session)
    142 

/home/cs/anaconda3/lib/python3.5/site-packages/normdatei-0.2-py3.5.egg/normdatei/text.py in clean_text(text)
     19 
     20 def clean_text(text):
---> 21     if not isinstance(text, unicode):
     22         try:
     23             text = text.decode('utf-8')

NameError: name 'unicode' is not defined