def p_ex_list_item_primitive(self, p):
if p[<NUM_LIT:1>] is NullToken:<EOL><INDENT>p[<NUM_LIT:0>] = None<EOL><DEDENT>else:<EOL><INDENT>p[<NUM_LIT:0>] = p[<NUM_LIT:1>]<EOL><DEDENT>
ex_list_item : primitive