Error 'rest_of_line' is not defined

[ALutz273]

Hello,

I get the following error:

># export PYTHONPATH=/opt/freeware/lib/python3.7/site-packages/
># errpt -a | python3 errpt-a_to_json.py
Traceback (most recent call last):
  File "//errpt-a_to_json.py", line 37, in <module>
    info_value          = rest_of_line.addParseAction(strip_value) + Optional(vpd_grammar)
NameError: name 'rest_of_line' is not defined

oslevel -s :7300-01-01-2246
python3 --version : Python 3.9.12