如何从odoo10中的unicode [u'a'，u'd']获取字段值

Question

我想获得字符串形式的unicode。为此我的代码在这里：

@api.multi

    def _select_service_product(self):

        r = []

        for order in self.order_line:

            res = order.product_id.type_service

            r.append(res)

            self.services_infor = r

            l = self.services_infor

            print "test,,,", res, self.services_infor, l

services_infor = fields.Char（compute ='_ select_service_product'）

现在终端显示：

test ,,, d [False，u'a'，u'd'] [False，u'a'，u'd']

从这里我想要值a，b

Answer 1

x = u"['a', 'b']"
# either you c an explicitly convert the unicode chars
print str(x)
output : "['a', 'b']"
#use eval function to make the unicode list to original
print eval(x)
output: ['a','b']