This is a regression from 4.13.0, 'tl-config -a /vsm/' works in 4.12.1 but after the Python3 conversion: > [cendio@lab-87 ~]$ /opt/thinlinc/bin/tl-config -a /vsm/ > Traceback (most recent call last): > File "/opt/thinlinc/bin/../bin/hivetool", line 309, in <module> > main() > File "/opt/thinlinc/bin/../bin/hivetool", line 304, in main > print_walk(hive, foldername, recursive) > File "/opt/thinlinc/bin/../bin/hivetool", line 165, in print_walk > value = safe_string(value) > File "/opt/thinlinc/bin/../bin/hivetool", line 18, in safe_string > return s.encode(enc, errors="replace").decode(enc) > AttributeError: 'NoneType' object has no attribute 'encode' This commit looks suspicious: r37284