From 892a2379186a26fcf7cdca7ef2fd30be680606a0 Mon Sep 17 00:00:00 2001
From: "mulin.lyh" <mulin.lyh@taobao.com>
Date: Mon, 5 Dec 2022 16:58:11 +0800
Subject: [PATCH] [to #46549395]fix: fix http_get_file headers is None, will
 exception

Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/10973267
---
 modelscope/hub/file_download.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modelscope/hub/file_download.py b/modelscope/hub/file_download.py
index b52ba2a2..71a0b63c 100644
--- a/modelscope/hub/file_download.py
+++ b/modelscope/hub/file_download.py
@@ -204,7 +204,7 @@ def http_get_file(
     total = -1
     temp_file_manager = partial(
         tempfile.NamedTemporaryFile, mode='wb', dir=local_dir, delete=False)
-    get_headers = copy.deepcopy(headers)
+    get_headers = {} if headers is None else copy.deepcopy(headers)
     with temp_file_manager() as temp_file:
         logger.info('downloading %s to %s', url, temp_file.name)
         # retry sleep 0.5s, 1s, 2s, 4s