POST请求多部分/格式。内容类型不正确

We're trying to write a script with python (using python-requests a.t.m.) to do a POST request to a site where the content has to be MultipartFormData. When we do this POST request manually (by filling in the form on the site and post), using wireshark, this came up (short version):We're trying to write a script with python (usi