effective-python.md

• Item 17: Be defensive when iterating over arguments (Iterator Protocol)
• Item 21: Enforce clarity with keyword only arguments
• Item 23 page 63: Method reference: accept functions for simple interfaces instead of classes
• NotImplementedError: a useful exception to specify method that subclasses need to implement. Similar to undefined in Haskell
• Item 26: Use multiple inheritance only for Mix-in Utility classes. Interesting use of mixins.
• Item 28: Inherit from Collections.abc for custom container types
• Item 31: use descriptors for reusable @property methods
• Item 32: use __getattr__, __getattribute__ and __setattr__ for lazy attributes.
• Item 40: Consider coroutines to run many functions concurrently. yield from keyword.
  • concurrent.futures.ThreadPoolExecutor
  • concurrent.futures.ProcessPoolExecutor
• Item 42: define function decorators with functools.wraps
• Item 43: consider contextlib and with statements for reusable try/finally behavior
• Item 46: use built-in algorithms and data structures. See page 170 for itertools functions that are very useful.