エキPy読書会2nd #4 スクリーン

gistfile1.py

$ python
Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> int
<type 'int'>
>>> type(10)
<type 'int'>
>>> dir(10)
['__abs__', '__add__', '__and__', '__class__', '__cmp__', '__coerce__', '__delattr__', 

'__div__', '__divmod__', '__doc__', '__float__', '__floordiv__', '__format__', 

'__getattribute__', '__getnewargs__', '__hash__', '__hex__', '__index__',
'__init__', '__int__', '__invert__', '__long__', '__lshift__', '__mod__', '__mul__', 

'__neg__', '__new__', '__nonzero__', '__oct__', '__or__', '__pos__', '__pow__', '__radd__', 

'__rand__', '__rdiv__', '__rdivmod__', '__reduce__', '__reduce_ex__', '__repr__', 

'__rfloordiv__', '__rlshift__', '__rmod__', '__rmul__', '__ror__', '__rpow__', 

'__rrshift__', '__rshift__', '__rsub__', '__rtruediv__', '__rxor__', '__setattr__', 

'__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__trunc__', 

'__xor__', 'bit_length', 'conjugate', 'denominator', 'imag', 'numerator', 'real']
>>> int.__str__
<slot wrapper '__str__' of 'int' objects>
>>> str(10)
'10'
>>> import types
>>> dir(types)
['BooleanType', 'BufferType', 'BuiltinFunctionType', 'BuiltinMethodType', 'ClassType', 

'CodeType', 'ComplexType', 'DictProxyType', 'DictType', 'DictionaryType', 'EllipsisType', 

'FileType', 'FloatType', 'FrameType', 'FunctionType', 'GeneratorType', 

'GetSetDescriptorType', 'InstanceType', 'IntType', 'LambdaType', 'ListType', 'LongType', 

'MemberDescriptorType', 'MethodType', 'ModuleType', 'NoneType', 'NotImplementedType', 

'ObjectType', 'SliceType', 'StringType', 'StringTypes', 'TracebackType', 'TupleType', 

'TypeType', 'UnboundMethodType', 'UnicodeType', 'XRangeType', '__builtins__', '__doc__', 

'__file__', '__name__', '__package__']
>>> import UserList
>>> dir(UserList)
['UserList', '__builtins__', '__doc__', '__file__', '__name__', '__package__', 

'collections']
>>> UserList.UserList
<class 'UserList.UserList'>
>>> class Aodag(UserList.UserList):
...     pass
...
>>> a = Aodag()
>>> a
[]
>>> list
<type 'list'>
>>>
>>> class Dict(dict):
...     def __getattr__(self, name):
...         if name in self:
...             return self[name]
...         else:
...             return super(Dict, self).__getattr__(name)
...
>>> d = Dict()
>>> d['foo'] = 1
>>> d.foo
1
>>> dir(dict)
['__class__', '__cmp__', '__contains__', '__delattr__', '__delitem__', '__doc__', '__eq__', 

'__format__', '__ge__', '__getattribute__', '__getitem__', '__gt__', '__hash__', '__init__', 

'__iter__', '__le__', '__len__', '__lt__', '__ne__', '__new__', '__reduce__', 

'__reduce_ex__', '__repr__', '__setattr__', '__setitem__', '__sizeof__', '__str__', 

'__subclasshook__', 'clear', 'copy', 'fromkeys', 'get', 'has_key', 'items', 'iteritems', 

'iterkeys', 'itervalues', 'keys', 'pop', 'popitem', 'setdefault', 'update', 'values', 

'viewitems', 'viewkeys', 'viewvalues']
>>> dir({})
['__class__', '__cmp__', '__contains__', '__delattr__', '__delitem__', '__doc__', '__eq__', 

'__format__', '__ge__', '__getattribute__', '__getitem__', '__gt__', '__hash__', '__init__', 

'__iter__', '__le__', '__len__', '__lt__', '__ne__', '__new__', '__reduce__', 

'__reduce_ex__', '__repr__', '__setattr__', '__setitem__', '__sizeof__', '__str__', 

'__subclasshook__', 'clear', 'copy', 'fromkeys', 'get', 'has_key', 'items', 'iteritems', 

'iterkeys', 'itervalues', 'keys', 'pop', 'popitem', 'setdefault', 'update', 'values', 

'viewitems', 'viewkeys', 'viewvalues']
>>> d['items'] = 2
>>> d.items
<built-in method items of Dict object at 0x027C7620>
>>>
>>> dict
<type 'dict'>
>>> dict()
{}
>>> super
<type 'super'>
>>> d
{'items': 2, 'foo': 1}
>>> super(Dict, d)
<super: <class 'Dict'>, <Dict object>>
>>> super(Dict, d).items
<built-in method items of Dict object at 0x027C7620>
>>> d.__getattr__
<bound method Dict.__getattr__ of {'items': 2, 'foo': 1}>
>>>
>>>
>>> super(Dict, d)
<super: <class 'Dict'>, <Dict object>>
>>> dict
<type 'dict'>
>>> d
{'items': 2, 'foo': 1}
>>>
>>> class BaseBase(object):
...     def method(self):
...         print "BaseBase"
...
>>> class Base1(BaseBase):
...     pass
...
>>> class Base2(BaseBase):
...     def method(self):
...         print "Base2"
...
>>> class MyClass(Base1, Base2):
...     pass
...
>>>
>>> m = MyClass()
>>> m.method()
Base2
>>> MyClass.__mro__
(<class '__main__.MyClass'>, <class '__main__.Base1'>, <class '__main__.Base2'>, <class 

'__main__.BaseBase'>, <type 'object'>)
>>> super(Dict)
<super: <class 'Dict'>, NULL>
>>>
>>>
>>> dir(MyClass)
['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__', 

'__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', 

'__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'method']
>>> MyClass.method
<unbound method MyClass.method>
>>> dir(MyClass.method)
['__call__', '__class__', '__cmp__', '__delattr__', '__doc__', '__format__', '__func__', 

'__get__', '__getattribute__', '__hash__', '__init__', '__new__', '__reduce__', 

'__reduce_ex__', '__repr__', '__self__', '__setattr__', '__sizeof__', '__str__', 

'__subclasshook__', 'im_class', 'im_func', 'im_self']
>>> MyClass.__mro__
(<class '__main__.MyClass'>, <class '__main__.Base1'>, <class '__main__.Base2'>, <class 

'__main__.BaseBase'>, <type 'object'>)
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> class Spam(object):
...     def __init__(self, arg):
...         self.__arg = arg
...     def getter(self):
...         return self.__arg
...     def setter(self, value):
...         self.__arg = value
...     arg = property(getter, setter)
...
>>> spam = Spam()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: __init__() takes exactly 2 arguments (1 given)
>>> spam = Spam(10)
>>> spam.arg
10
>>> spam.arg = 1
>>> spam.arg
1
>>> import pdb
>>> spam._Spam__arg
1
>>>