Using tempfile package on Python. [Errno 1] Operation not permitted: '/tmp/tmpi95z5xb8'.

Question

Using tempfile package on Python. [Errno 1] Operation not permitted: '/tmp/tmpi95z5xb8'.

George Davis 1

I am trying to use tempfile package on Python but the result is always Operation not permitted.

Result: Failure Exception: Exception: Err: [Errno 1] Operation not permitted: '/tmp/tmpi95z5xb8' Stack: File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/dispatcher.py", line 406, in _handle__invocation_request call_result = await self._loop.run_in_executor( File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run result = self.fn(*self.args, **self.kwargs) File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/dispatcher.py", line 648, in _run_sync_func return ExtensionManager.get_sync_invocation_wrapper(context, File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/extension.py", line 215, in _raw_invocation_wrapper result = function(**args) File "/home/site/wwwroot/filestoragesecurity-azure-malwaretest/handler.py", line 312, in main raise Exception("Err: " + str(e))

GitHub - https://github.com/GeorgeDavis-TM/filestoragesecurity-azure-malwaretest/blob/main/filestoragesecurity-azure-malwaretest/handler.py

Carlos Solís Salazar 18,191 Reputation points MVP Volunteer Moderator

2022-07-22T15:14:26.88+00:00

Thank you for asking this question on the **Microsoft Q&A Platform. **

You have not received answers or comments to your question because it may be ambiguous or confusing.

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Hope this helps,
Carlos Solís Salazar

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Carlos Solís Salazar 18,191 Reputation points MVP Volunteer Moderator

2022-07-22T15:14:26.88+00:00

Thank you for asking this question on the **Microsoft Q&A Platform. **

You have not received answers or comments to your question because it may be ambiguous or confusing.

I recommend you visit How to write a quality question and verify that your question meets some of the recommendations.

Hope this helps,
Carlos Solís Salazar

----------

NOTE: To answer you as quickly as possible, please mention me in your reply.

Answer 1

Hi @George Davis ,

Thanks for reaching out to Q&A forum.

It appears that the handler.py script is performing write/zip operations on the temp directory. Azure functions being a sandboxed environment, prevents using other directories and its access might be restricted. I would suggest you to use the /home/site/wwwroot directory as this is a small capacity persistent storage which customers have full access.

File system restrictions : https://github.com/projectkudu/kudu/wiki/Azure-Web-App-sandbox#file-system-restrictionsconsiderations

Feel free to reach out to me if you have any questions or concerns

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Using tempfile package on Python. [Errno 1] Operation not permitted: '/tmp/tmpi95z5xb8'.

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