Primer on Python Decorators – Real Python
realpython.com
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Primer on Python Decorators – Real Python
Write Like A Programmer
qntm.org
Python (2nd Edition): Learn Python in One Day and Learn It Well. Python for Beginners with Hands-on Project. (Learn Coding Fast with Hands-On Project Book 1)
amazon.com
Just a moment...
anthropic.com
This pattern (set up, do work, clean up) is common across many different problem domains, so Python has a language feature to help with it. Context managers, defined using the with keyword, manage the setup and cleanup processes. Python's file objects support them, as do most database libraries.