Customizing builtin data types in Python
str, int, dict, tuple, list, float, bool, set, are all Python classes. This means that we can subclass them and devise our own classes which behave the same way as the built-in types, and at the same time, give us the option of customize selected functionality.
>>> class MyInt(int):
def __add__(self, value):
print("Adding...")
return int.__add__(self, value)
>>> a = MyInt(5)
>>> a + 6
Adding...
11
See also:
- Python 101
- Object Oriented Python
- Design Patterns in Python
- 50+ Handy Standard Library Modules
- 60+ Handy Third Library Modules
- 50+ Tips & Tricks for Python Developers
- 50+ Know-How(s) Every Pythonista Must Know