# Python  Magic Method #

 Python  "__" "" `__init__` 







 Python  `dir()` .

```python
#!/usr/bin/env python3
# -*- coding: UTF-8 -*-

class User(object):
    pass


if __name__ == '__main__':
    print(dir(User()))
```



```
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__']
```