@@ -42,6 +42,8 @@ class MultiPartUpload(object):

         if not self.upload_id:

             raise RuntimeError("Attempting to use a multipart upload that has not been initiated.")

+	self.chunk_size = self.s3.config.multipart_chunk_size_mb * 1024 * 1024

+

         if self.file.name != "<stdin>":

                 size_left = file_size = os.stat(self.file.name)[ST_SIZE]

                 nr_parts = file_size / self.chunk_size + (file_size % self.chunk_size and 1)

@@ -49,8 +51,6 @@ class MultiPartUpload(object):

         else:

             debug("MultiPart: Uploading from %s" % (self.file.name))

-	self.chunk_size = self.s3.config.multipart_chunk_size_mb * 1024 * 1024

-

         seq = 1

 	if self.file.name != "<stdin>":

             while size_left > 0: