12

Session 12 Python Basics (continue)

• Variables scope
• Context managers (with statement)

Screencast

Materials

• variables scope
  • https://www.youtube.com/watch?v=QVdf0LgmICw
  • Introduction to namespaces and scopes
  • https://www.programiz.com/python-programming/namespace
  • free variables - closures https://www.youtube.com/watch?v=swU3c34d2NQ
  • https://realpython.com/python-scope-legb-rule/
• context managers (with statement)
  • https://docs.python.org/3/library/stdtypes.html#context-manager-types
  • https://docs.python.org/3/reference/compound_stmts.html#the-with-statement
  • https://www.python.org/dev/peps/pep-0343/#examples

Project

• temporary replace one of the builtin functions with own function using context managers.
  • using class based context manager
  • using decorator-based context manager function