def total_marks(self):
total = <NUM_LIT:0><EOL>for answer in self.answers:<EOL><INDENT>for number, part in enumerate(answer):<EOL><INDENT>if number><NUM_LIT:0>:<EOL><INDENT>if part[<NUM_LIT:2>]><NUM_LIT:0>:<EOL><INDENT>total+=part[<NUM_LIT:2>]<EOL><DEDENT><DEDENT><DEDENT><DEDENT>return total<EOL>
Compute the total mark for the assessment.