def p_expr_nobf(self, p):
if len(p) == <NUM_LIT:2>:<EOL><INDENT>p[<NUM_LIT:0>] = p[<NUM_LIT:1>]<EOL><DEDENT>else:<EOL><INDENT>p[<NUM_LIT:0>] = self.asttypes.Comma(left=p[<NUM_LIT:1>], right=p[<NUM_LIT:3>])<EOL>p[<NUM_LIT:0>].setpos(p, <NUM_LIT:2>)<EOL><DEDENT>
expr_nobf : assignment_expr_nobf
                     | expr_nobf COMMA assignment_expr