db_log_to_unicode.py

def to_unicode(f):
    if isinstance(f, dict):
        for k, v in f.iteritems():
            f[str(k)] = to_unicode(v)
    elif isinstance(f, (list, tuple)):
        f = [to_unicode(f) for f in f]
    elif isinstance(f, str):
        f = f.decode('utf-8')
    else:
        f = unicode(f)
    return f