如何在python中将新数据添加到现有JSON文件中？

Question

我有此代码：

def writeToJSONFile(self, path, fileName, data):
    filePathNameWExt =  path + '/' + fileName + '.json'
    print('     Info stored at: '+filePathNameWExt)
    with open(filePathNameWExt, 'w') as fp:
        json.dump(data, fp)

def saveInfo(self):

    self.data['title'] = self.getHeading()
    self.data['user'] = self.getUser()
    self.data['location'] = self.file_path

    self.writeToJSONFile(self.workspace, 'Info', self.data)

这将创建一个JSON文件，如下所示：

{"title": "Stonks", "user": "Devang_Kadam", "location": "C:/Users/SHREYAS/Documents/Stonks.png"}

但是，每次我运行saveInfo时，它都会覆盖相同的信息，如何获取这样的JSON：

{“ title”：“ Stonks”，“ user”：“ Devang_Kadam”，“ location”：“ C：/Users/SHREYAS/Documents/Stonks.png”}，{“ title”：“ newTitle”，“用户”：“ newuser”，“位置”：“ newLovation”}