偏移量有默认值吗?

参数由自动传递 create_upload_session() ,你无法改变它所经过的。

您可以使用lambda将其他参数传递给您的函数。

    for file in report_list:
        uploaded_file = target_folder.files.create_upload_session(
            file, size_chunk, 
            lambda offset, file=file: print_upload_progress(offset, file)
        ).execute_query()

        print("File {0} has been uploaded successfully".format(uploaded_file.serverRelativeUrl))

看见 Creating functions (or lambdas) in a loop (or comprehension) 的解释 file=file lambda的参数。

请参阅的定义 create_upload_session 作用

def create_upload_session(
        self, file, chunk_size, chunk_uploaded=None, file_name=None, **kwargs
    ):

如果第三个参数是一个函数,则使用以下方法调用它:

uploaded_bytes = file.tell()
if callable(chunk_uploaded):
   chunk_uploaded(uploaded_bytes, **kwargs)

然后,第一个参数应该是偏移量(或文件流中的当前文件位置),下面的参数可以用**kwargs发送。因此,您可以将您的print_upload_progress定义为:

def print_upload_progress(offset,filename):
    print(str(offset))
    # type: (int) -> None
    file_size = os.path.getsize(local_path)
    print(
        filename+" Uploaded '{0}' bytes from '{1}'...[{2}%]".format(
            offset, file_size, round(offset / file_size * 100, 2)
        )
    )

并将其用作:

uploaded_file = target_folder.files.create_upload_session(
        file, size_chunk, print_upload_progress,filename= file.name
        ).execute_query()