Add :term:s for "new-style class".
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@ -255,6 +255,8 @@ Glossary
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powerful, elegant solutions. They have been used for logging attribute
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access, adding thread-safety, tracking object creation, implementing
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singletons, and many other tasks.
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More information can be found in :ref:`metaclasses`.
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mutable
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Mutable objects can change their value but keep their :func:`id`. See
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@ -286,6 +288,8 @@ Glossary
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use Python's newer, versatile features like :attr:`__slots__`,
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descriptors, properties, :meth:`__getattribute__`, class methods, and
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static methods.
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More information can be found in :ref:`newstyle`.
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Python 3000
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Nickname for the next major Python version, 3.0 (coined long ago when the
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@ -1950,7 +1950,7 @@ Data types
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in case the memory block contains pointers.
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Common methods of ctypes data types, these are all class methods (to be exact,
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they are methods of the metaclass):
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they are methods of the :term:`metaclass`):
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.. method:: _CData.from_address(address)
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@ -350,7 +350,7 @@ available. They are listed here in alphabetical order.
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The *expression* argument is parsed and evaluated as a Python expression
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(technically speaking, a condition list) using the *globals* and *locals*
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dictionaries as global and local name space. If the *globals* dictionary is
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dictionaries as global and local namespace. If the *globals* dictionary is
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present and lacks '__builtins__', the current globals are copied into *globals*
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before *expression* is parsed. This means that *expression* normally has full
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access to the standard :mod:`__builtin__` module and restricted environments are
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@ -808,8 +808,8 @@ available. They are listed here in alphabetical order.
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.. function:: property([fget[, fset[, fdel[, doc]]]])
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Return a property attribute for new-style classes (classes that derive from
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:class:`object`).
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Return a property attribute for :term:`new-style class`\es (classes that
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derive from :class:`object`).
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*fget* is a function for getting an attribute value, likewise *fset* is a
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function for setting, and *fdel* a function for del'ing, an attribute. Typical
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@ -1112,8 +1112,8 @@ available. They are listed here in alphabetical order.
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Return the superclass of *type*. If the second argument is omitted the super
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object returned is unbound. If the second argument is an object,
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``isinstance(obj, type)`` must be true. If the second argument is a type,
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``issubclass(type2, type)`` must be true. :func:`super` only works for new-style
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classes.
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``issubclass(type2, type)`` must be true. :func:`super` only works for
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:term:`new-style class`\es.
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A typical use for calling a cooperative superclass method is::
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@ -22,7 +22,7 @@ logging system for applications.
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Logging is performed by calling methods on instances of the :class:`Logger`
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class (hereafter called :dfn:`loggers`). Each instance has a name, and they are
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conceptually arranged in a name space hierarchy using dots (periods) as
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conceptually arranged in a namespace hierarchy using dots (periods) as
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separators. For example, a logger named "scan" is the parent of loggers
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"scan.text", "scan.html" and "scan.pdf". Logger names can be anything you want,
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and indicate the area of an application in which a logged message originates.
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@ -122,7 +122,7 @@ There are currently 3 different protocols which can be used for pickling.
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earlier versions of Python.
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* Protocol version 2 was introduced in Python 2.3. It provides much more
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efficient pickling of new-style classes.
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efficient pickling of :term:`new-style class`\es.
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Refer to :pep:`307` for more information.
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@ -430,8 +430,8 @@ New-style types can provide a :meth:`__getnewargs__` method that is used for
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protocol 2. Implementing this method is needed if the type establishes some
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internal invariants when the instance is created, or if the memory allocation is
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affected by the values passed to the :meth:`__new__` method for the type (as it
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is for tuples and strings). Instances of a new-style type :class:`C` are
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created using ::
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is for tuples and strings). Instances of a :term:`new-style class` :class:`C`
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are created using ::
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obj = C.__new__(C, *args)
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@ -459,8 +459,8 @@ can do what they want. [#]_
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.. warning::
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For new-style classes, if :meth:`__getstate__` returns a false value, the
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:meth:`__setstate__` method will not be called.
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For :term:`new-style class`\es, if :meth:`__getstate__` returns a false
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value, the :meth:`__setstate__` method will not be called.
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Pickling and unpickling extension types
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@ -549,7 +549,7 @@ string representation and register the function with :meth:`register_adapter`.
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.. note::
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The type/class to adapt must be a new-style class, i. e. it must have
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The type/class to adapt must be a :term:`new-style class`, i. e. it must have
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:class:`object` as one of its bases.
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.. literalinclude:: ../includes/sqlite3/adapter_point_2.py
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@ -113,8 +113,9 @@ between conformable Python objects and XML on the wire.
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The *use_datetime* flag was added.
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.. versionchanged:: 2.6
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Instances of new-style classes can be passed in if they have an *__dict__*
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attribute and don't have a base class that is marshalled in a special way.
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Instances of :term:`new-style class`\es can be passed in if they have an
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*__dict__* attribute and don't have a base class that is marshalled in a
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special way.
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.. seealso::
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@ -534,8 +534,9 @@ must be given a value in the :meth:`__init__` method or in another method. Both
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class and instance variables are accessible through the notation
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"``self.name``", and an instance variable hides a class variable with the same
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name when accessed in this way. Class variables with immutable values can be
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used as defaults for instance variables. For new-style classes, descriptors can
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be used to create instance variables with different implementation details.
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used as defaults for instance variables. For :term:`new-style class`\es,
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descriptors can be used to create instance variables with different
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implementation details.
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.. rubric:: Footnotes
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@ -1082,6 +1082,7 @@ Internal types
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.. % Types
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.. % =========================================================================
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.. _newstyle:
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New-style and classic classes
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=============================
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@ -495,8 +495,8 @@ figure out the consequences of a name conflict with an attribute of
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:class:`Base2`. The depth-first rule makes no differences between direct and
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inherited attributes of :class:`Base1`.)
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For new-style classes, the method resolution order changes dynamically to
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support cooperative calls to :func:`super`. This approach is known in some
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For :term:`new-style class`\es, the method resolution order changes dynamically
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to support cooperative calls to :func:`super`. This approach is known in some
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other multiple-inheritance languages as call-next-method and is more powerful
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than the super call found in single-inheritance languages.
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@ -373,7 +373,7 @@ Environment variables
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If this is the name of a readable file, the Python commands in that file are
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executed before the first prompt is displayed in interactive mode. The file
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is executed in the same name space where interactive commands are executed so
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is executed in the same namespace where interactive commands are executed so
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that objects defined or imported in it can be used without qualification in
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the interactive session. You can also change the prompts :data:`sys.ps1` and
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:data:`sys.ps2` in this file.
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