具有多个 response.out.write 语句的 Python 方法

Question

Could someone please confirm for me whether the following should work in Python? Someone calls the server and the response can be return in a number of ways. Instead of using nested "ifs" I was hoping to do as follows:

    def get(self):
        self.response.headers['Content-Type'] = 'application/json'
        data = fromLocationOne()
        if data is not None:
            return self.response.out.write(json.dumps(data))
        data = fromLocationTwo()
        if data is not None:
            return self.response.out.write(json.dumps(data))
            data = fromLocationThree()
        if data is not None:
            return self.response.out.write(json.dumps(data))

Answer 1

Yes it will work for simplicity you can replace if data is not None: by if data:

If it was me I would write it as following

def get(self):
    self.response.headers['Content-Type'] = 'application/json'
    functions = [fromLocationOne, fromLocationTwo, fromLocationThree]
    for f in functions:
      data = f()
      if data:
        return self.response.out.write(json.dumps(data))