使用多部分编码的问题(海报图书馆)
原文：Problems using multipart_encode (poster library)
原文：Problems using multipart_encode (poster library)
我正试图用多部分代码重载一个文件,以实现监测和评价进程。 然而,我遇到了以下错误:多功能疗法没有属性__len__。 ......
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