相关疑难解决方法(0)

我对Python中的JSON有点困惑.对我来说,它看起来像是一本字典,因此我试图这样做:

{
    "glossary":
    {
        "title": "example glossary",
        "GlossDiv":
        {
            "title": "S",
            "GlossList":
            {
                "GlossEntry":
                {
                    "ID": "SGML",
                    "SortAs": "SGML",
                    "GlossTerm": "Standard Generalized Markup Language",
                    "Acronym": "SGML",
                    "Abbrev": "ISO 8879:1986",
                    "GlossDef":
                    {
                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
                        "GlossSeeAlso": ["GML", "XML"]
                    },
                    "GlossSee": "markup"
                }
            }
        }
    }
}

但是当我打印dict(json)时,它会出错.

如何将此字符串转换为结构,然后调用json ["title"]以获取"示例词汇表"？

我有一些发票项目：

lista_items = {}        
lineNumber = 0
for line in self.invoice_line_ids:
    lineNumber = lineNumber + 1            
    print lineNumber
    lista_items["numeroLinea"] = [lineNumber]
    lista_items["cantidad"] = [line.quantity]
    lista_items["costo_total"] = [line.price_subtotal]
    lista_items["precioUnitario"] = [line.price_unit]
    lista_items["descripcion"] = [line.name]            
    # for line_tax in line.invoice_line_tax_ids:                
    #     print line_tax.amount            
    #     print line_tax.id 
    #     # print line.invoice_line_tax_ids               
return lista_items

我需要将项目保存在字典中，然后将其保存为 JSON。

我该怎么做？