Hi @Shozo Suehiro/末廣 祥三 ,
Since our forum mainly discuss about SharePoint development using C#, and your issue is about development by Python, we suggest you can create a new thread on techcommunity for help:
techcommunity :
https://techcommunity.microsoft.com/t5/sharepoint-developer/bd-p/SharePointDev
Hope it can help you. Thanks for your understanding and support.
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