Context Managers

Todo

• ELI5: Context managers
• Examples you may have encountered
  • with open() as f:
  • with sqlalchemy.Session() as sess:
• Writing a context manager function with @contextmanager
• Writing a context manager class
  • The __enter__() and __exit__() methods
  • Handling exceptions

Extra reading

• Python docs: contextlib
• RealPython: Context Managers and Python's with Statement
• PythonTutorial: Python context managers
• LearnDataSci.com: Context managers in Python using the "with" statement
• FreeCodeCamp: Context Managers in Python
• Medium: Demystifying Python Context Managers: A Comprehensive Guide