带有unicode的pyqt5：使它在python2和python 3之间兼容

Question

我试图在PyQt5小部件中显示一些unicode字母，如：

data['image']

其中UnicodeEncodeError: 'ascii' codec can't encode character u'\u03bc' in position 8: ordinal not in range(128) 是从yaml配置文件读取的unicode字符串。

然而，当使用python2运行时，我收到以下错误：

@IgnoreExtraProperties
public class Product {

    public String uid;
    public String seller;
    public String name;
    public String description;
    public String city;
    public double price = 0.0;
    public List<Uri> images = new ArrayList<>();

    public Product () {

    }

    public Product(String uid, String seller, String name, String description, String city, double price, List<Uri> images) {
        this.uid = uid;
        this.seller = seller;
        this.name = name;
        this.description = description;
        this.city = city;
        this.price = price;
        this.images = images;
    }

    // [START post_to_map]
    @Exclude
    public Map<String, Object> toMap() {
        HashMap<String, Object> result = new HashMap<>();
        result.put("uid", uid);
        result.put("seller", seller);
        result.put("name", name);
        result.put("description", description);
        result.put("city", city);
        result.put("price", price);
        result.put("images", images);

        return result;
    }
}

如果使用python3运行相同的程序，它可以正常工作。

我的问题是，有没有办法让代码可以从python2和python3运行？