as the snapshot shows, when I check the autopep8 option the error messege showd up.
How can I solve this ?

As indicated, install autopep8, with something like
pip install autopep8 --user
@jfbercher I have the same problem and your solution didn't work for me, any other ideas?
@jfbercher I have the same problem and your solution didn't work for me, any other ideas?
try
conda install autopep8
Most helpful comment
As indicated, install autopep8, with something like