$ python2 convert.py -h
Traceback (most recent call last):
File "convert.py", line 13, in
import intermol.gromacs as gmx
File "/home/anaconda3/envs/intermol/lib/python2.7/site-packages/intermol/gromacs/init.py", line 112
logger.error(f'grompp failed with error code {proc.returncode} See {stderr_path}')
^
SyntaxError: invalid syntax