Hello I have an old wallet.dat file from 2011.

When I run python pywallet.py --dumpwallet --wallet=wallet.dat  > ~/wallet.dat.json

I get:

Traceback (most recent call last):
  File "pywallet.py", line 2316, in parse_wallet
    item_callback(type, d)
  File "pywallet.py", line 2716, in item_callback
    json_db[type] = 'unsupported'
  File "pywallet.py", line 111, in __setitem__
    return super(Bdict, self).__setitem__(bytes_to_str(k), v)
  File "pywallet.py", line 90, in bytes_to_str
    return k.decode()
UnicodeDecodeError: 'ascii' codec can't decode byte 0xa1 in position 0: ordinal not in range(128)


any ideas?