Error in linear_rl_trader.py

[look4yasharth]

There is some error in the code. Kindly check it and resolve it out as soon as possible.
My MacOS terminal says:
line 349
with open(f'{models_folder}/scaler.pkl', 'rb') as f:
^
SyntaxError: invalid syntax

[majiang]

Did you ensure that your Python version supports
f-string?

[ghost]

older versions of python do not support f-strings. i would recommend upgrading python to 3.6(the one i use). hope this helps