method for array

(sandbox) PS G:\workspace\py\sandbox\standards> python
Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 16:07:46) [MSC v.1900 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> dir([])
['__add__', '__class__', '__contains__', '__delattr__', '__delitem__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__gt__', '__hash__', '__iadd__', '__imul__', '__init__', '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__', '__rmul__', '__setattr__', '__setitem__', '__sizeof__', '__str__', '__subclasshook__', 'append', 'clear', 'copy', 'count', 'extend', 'index', 'insert', 'pop', 'remove', 'reverse', 'sort']
>>> for i in dir([]):
...     print(i)
...
__add__
__class__
__contains__
__delattr__
__delitem__
__dir__
__doc__
__eq__
__format__
__ge__
__getattribute__
__getitem__
__gt__
__hash__
__iadd__
__imul__
__init__
__init_subclass__
__iter__
__le__
__len__
__lt__
__mul__
__ne__
__new__
__reduce__
__reduce_ex__
__repr__
__reversed__
__rmul__
__setattr__
__setitem__
__sizeof__
__str__
__subclasshook__
append
clear
copy
count
extend
index
insert
pop
remove
reverse
sort
>>> quit()