Tips and Traps¶
Type hints cheat sheet (Python 3) is a quick cheat sheet showing how the PEP 484 type annotation notation represents various common types in Python 3.
Notice that the annotation on List and Tuple are different.
List[T]stands for a variable length list of elements with typeT
Use a Class in the Definition of the Class in Python
Comments¶
- As long as the class name is not need at definition time of the class, it is OK to use it.
You cannot use a class in default values of the __init__ function of the class.