It appears that according to the error message, you have an errant comma after
comp_choice on line 15, though it is not visible in the code you have displayed. There is a shift to italics in the display of that variable name, though.
First look at the line above, and make sure the parentheses are all closed. A
SyntaxError is sometimes related to something on the line previous to where it is reported. Perhaps correcting the parentheses will clear things up. If not, and there really is a strange character right after the variable name on line 15, it might be a good idea to delete that entire line, just to make sure it is clean, and then to type it over again correctly.