Context Manager
Links
- https://book.pythontips.com/en/latest/context_managers.html
- https://alysivji.github.io/managing-resources-with-context-managers-pythonic.html
- https://docs.python.org/3.7/reference/datamodel.html?highlight=context%20manager#with-statement-context-managers
Last modified July 16, 2022: fix headlines in python doc (3992313)