Python 如何使用get请求的响应通过aiohttp上传文件？

首先，我正在为WordPressRESTAPI编写一个异步包装器。我在Bluehost上有一个Wordpress网站。我正在使用媒体（图像）上传的端点。我已经成功地上传了一张图片，但是我想做两个改变。第二个变化是我真正想要的，但出于好奇，我也想知道如何实现变化1。我将首先提供代码，然后提供一些详细信息

工作代码

async def upload_local_pic2(self, local_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'title': title, 'status':'publish'}
      mpwriter.append_json(json)
      with open(local_url, 'rb') as f:
        print(f)
        payload = mpwriter.append(f)
        async with self.session.post(url, data=payload) as response:
          x = await response.read()
          print(x)

更改1

第一个变化是使用aiofiles.open（）上传，而不是像我预期的那样只使用open（）来处理大量文件。以下代码不起作用

async def upload_local_pic(self, local_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'title': title, 'status':'publish'}
      mpwriter.append_json(json)
      async with aiofiles.open(local_url, 'rb') as f:
        print(f)
        payload = mpwriter.append(f)
        async with self.session.post(url, data=payload) as response:
          x = await response.read()
          print(x)

async def upload_pic(self, image_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'title':title, 'status':'publish'}
      mpwriter.append_json(json)
      async with self.session.get(image_url) as image_response:
        image_content = image_response.content
        print(image_content)
        payload = mpwriter.append(image_content)
        async with self.session.post(url, data = payload) as response:
          x = await response.read()
          print(x)

更改2

我的另一个变化是，我想有另一个功能，可以直接上传文件到WordPress服务器，而无需本地下载。因此，我不想获取本地图片，而是想在网上传递图片的url。以下代码也不起作用

async def upload_local_pic(self, local_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'title': title, 'status':'publish'}
      mpwriter.append_json(json)
      async with aiofiles.open(local_url, 'rb') as f:
        print(f)
        payload = mpwriter.append(f)
        async with self.session.post(url, data=payload) as response:
          x = await response.read()
          print(x)

async def upload_pic(self, image_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'title':title, 'status':'publish'}
      mpwriter.append_json(json)
      async with self.session.get(image_url) as image_response:
        image_content = image_response.content
        print(image_content)
        payload = mpwriter.append(image_content)
        async with self.session.post(url, data = payload) as response:
          x = await response.read()
          print(x)

详细信息/调试

我想弄明白为什么每一个都不起作用。我认为关键在于调用

print（图像内容）

和

print（f）

显示我输入到

mpwriter.append的确切内容

在我使用标准Python
open（）
函数的示例中，我显然是在传递

在带有aiofile的change1示例中，我传入的
是我传入change2示例的url。
好的，所以我计算出了这两个更改

对于尝试使用
aiofiles
读取文件时的第一个更改，我需要读取整个文件，而不是传递文件处理程序。另外，我需要手动设置内容配置

async def upload_local_pic(self, local_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'status':'publish'}
      mpwriter.append_json(json)
      async with aiofiles.open(local_url, mode='rb') as f:
        contents = await f.read()
        payload = mpwriter.append(contents)
        payload.set_content_disposition('attachment', filename= title+'.jpg')
        async with self.session.post(url, data=payload) as response:
          x = await response.read()
          print(x)

async def upload_pic(self, image_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'status':'publish'}
      mpwriter.append_json(json)
      async with self.session.get(image_url) as image_response:
        image_content = await image_response.read()
        payload = mpwriter.append(image_content)
        payload.set_content_disposition('attachment', filename=title+'.jpg')
        async with self.session.post(url, data = payload) as response:
          x = await response.read()
          print(x)

对于第二个变化，这是一个类似的概念，只是直接从URL上传一个文件。我需要先读取整个内容，而不是传入将读取内容的处理程序。我还需要手动设置内容配置

async def upload_local_pic(self, local_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'status':'publish'}
      mpwriter.append_json(json)
      async with aiofiles.open(local_url, mode='rb') as f:
        contents = await f.read()
        payload = mpwriter.append(contents)
        payload.set_content_disposition('attachment', filename= title+'.jpg')
        async with self.session.post(url, data=payload) as response:
          x = await response.read()
          print(x)

async def upload_pic(self, image_url, date, title):
    url = f'{self.base_url}/wp-json/wp/v2/media'
    with aiohttp.MultipartWriter() as mpwriter:
      json = {'status':'publish'}
      mpwriter.append_json(json)
      async with self.session.get(image_url) as image_response:
        image_content = await image_response.read()
        payload = mpwriter.append(image_content)
        payload.set_content_disposition('attachment', filename=title+'.jpg')
        async with self.session.post(url, data = payload) as response:
          x = await response.read()
          print(x)