bottle.py 文件源码

def _body(self):
        """ The HTTP request body as a seekable file-like object.

            This property returns a copy of the `wsgi.input` stream and should
            be used instead of `environ['wsgi.input']`.
         """
        maxread = max(0, self.content_length)
        stream = self.environ['wsgi.input']
        body = BytesIO() if maxread < MEMFILE_MAX else TemporaryFile(mode='w+b')
        while maxread > 0:
            part = stream.read(min(maxread, MEMFILE_MAX))
            if not part: break
            body.write(part)
            maxread -= len(part)
        self.environ['wsgi.input'] = body
        body.seek(0)
        return body