Uploaded Test files

venv/Lib/site-packages/notebook/bundler/tarball_bundler.py

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+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+import os
+import io
+import tarfile
+import nbformat
+
+def _jupyter_bundlerextension_paths():
+    """Metadata for notebook bundlerextension"""
+    return [{
+        # unique bundler name
+        "name": "tarball_bundler",
+        # module containing bundle function
+        "module_name": "notebook.bundler.tarball_bundler",
+        # human-readable menu item label
+        "label" : "Notebook Tarball (tar.gz)",
+        # group under 'deploy' or 'download' menu
+        "group" : "download",
+    }]
+
+def bundle(handler, model):
+    """Create a compressed tarball containing the notebook document.
+    
+    Parameters
+    ----------
+    handler : tornado.web.RequestHandler
+        Handler that serviced the bundle request
+    model : dict
+        Notebook model from the configured ContentManager
+    """
+    notebook_filename = model['name']
+    notebook_content = nbformat.writes(model['content']).encode('utf-8')
+    notebook_name = os.path.splitext(notebook_filename)[0]
+    tar_filename = '{}.tar.gz'.format(notebook_name)
+    
+    info = tarfile.TarInfo(notebook_filename)
+    info.size = len(notebook_content)
+
+    with io.BytesIO() as tar_buffer:
+        with tarfile.open(tar_filename, "w:gz", fileobj=tar_buffer) as tar:
+            tar.addfile(info, io.BytesIO(notebook_content))
+
+        handler.set_attachment_header(tar_filename)
+        handler.set_header('Content-Type', 'application/gzip')
+
+        # Return the buffer value as the response
+        handler.finish(tar_buffer.getvalue())