python - GAE Python webapp2图片上传错误

Question

我正在开发一个项目，在该项目中我试图在 blob 商店上上传图像。但我收到此错误

File "C:\Users\shaizi\PycharmProjects\simpletestapp\Update.py", line 51, in post

blob_info = upload_files[0]
IndexError: list index out of range

我的 html 表单代码是

<form id="signup" method="post" action="/update" enctype="multipart/form-data">

 <label>Change image:</label>
        <input type="file" name="pict" ><br>
</form>

用于将图像上传到 Blob 存储的 Python 代码:

def post(self):

    blobstore.create_upload_url('/post/signup')

    upload_files = self.get_uploads('pict')

    blob_info = upload_files[0]

Answer 1

实际上我必须将操作设置为上传网址。

<form id="signup" method="post" action="/post/signup" enctype="multipart/form-data">

 <label>Change image:</label>
        <input type="file" name="pict" ><br>
</form>