[GitHub] [incubator-mxnet] eric-haibin-lin commented on a change in pull request #17372: [BUGFIX] fix model zoo parallel download

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eric-haibin-lin commented on a change in pull request #17372: [BUGFIX] fix model zoo parallel download
URL: https://github.com/apache/incubator-mxnet/pull/17372#discussion_r370283042
 
 

 ##########
 File path: python/mxnet/gluon/model_zoo/model_store.py
 ##########
 @@ -103,16 +105,19 @@ def get_model_file(name, root=os.path.join(base.data_dir(), 'models')):
 
     util.makedirs(root)
 
-    zip_file_path = os.path.join(root, file_name+'.zip')
     repo_url = os.environ.get('MXNET_GLUON_REPO', apache_repo_url)
     if repo_url[-1] != '/':
         repo_url = repo_url + '/'
-    download(_url_format.format(repo_url=repo_url, file_name=file_name),
-             path=zip_file_path,
-             overwrite=True)
-    with zipfile.ZipFile(zip_file_path) as zf:
-        zf.extractall(root)
-    os.remove(zip_file_path)
+
+    with tempfile.NamedTemporaryFile(dir=root) as zip_file:
+        download(_url_format.format(repo_url=repo_url, file_name=file_name),
+                 path=zip_file.name, overwrite=True, inplace=True)
 
 Review comment:
   Thanks for the comment! That makes me think NamedTemporaryFile and TemporaryFile are quite restricted. I have to modify other functions that uses this file so that they operate on the open file object itself. For now I'll fallback to the previous method where the file is explicitly cleaned up. 

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