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PATH: usr / share / doc / python-docs-2.7.5 / html / _sources / c-api

.. highlightlang:: c

.. _concrete:

**********************
Concrete Objects Layer
**********************

The functions in this chapter are specific to certain Python object types.
Passing them an object of the wrong type is not a good idea; if you receive an
object from a Python program and you are not sure that it has the right type,
you must perform a type check first; for example, to check that an object is a
dictionary, use :c:func:`PyDict_Check`.  The chapter is structured like the
"family tree" of Python object types.

.. warning::

While the functions described in this chapter carefully check the type of the
   objects which are passed in, many of them do not check for *NULL* being passed
   instead of a valid object.  Allowing *NULL* to be passed in can cause memory
   access violations and immediate termination of the interpreter.

.. _fundamental:

Fundamental Objects
===================

This section describes Python type objects and the singleton object ``None``.

.. toctree::

type.rst
   none.rst

.. _numericobjects:

Numeric Objects
===============

.. index:: object: numeric

.. toctree::

int.rst
   bool.rst
   long.rst
   float.rst
   complex.rst

.. _sequenceobjects:

Sequence Objects
================

.. index:: object: sequence

Generic operations on sequence objects were discussed in the previous chapter;
this section deals with the specific kinds of sequence objects that are
intrinsic to the Python language.

.. toctree::

bytearray.rst
   string.rst
   unicode.rst
   buffer.rst
   tuple.rst
   list.rst

.. _mapobjects:

Mapping Objects
===============

.. index:: object: mapping

.. toctree::

dict.rst

.. _otherobjects:

Other Objects
=============

.. toctree::

class.rst
   function.rst
   method.rst
   file.rst
   module.rst
   iterator.rst
   descriptor.rst
   slice.rst
   weakref.rst
   capsule.rst
   cobject.rst
   cell.rst
   gen.rst
   datetime.rst
   set.rst
   code.rst

[-] string.txt [edit]
[-] long.txt [edit]
[-] tuple.txt [edit]
[-] type.txt [edit]
[-] utilities.txt [edit]
[-] module.txt [edit]
[-] reflection.txt [edit]
[-] list.txt [edit]
[-] buffer.txt [edit]
[-] none.txt [edit]
[-] datetime.txt [edit]
[-] gcsupport.txt [edit]
[-] cobject.txt [edit]
[-] veryhigh.txt [edit]
[-] init.txt [edit]
[+] ..
[-] index.txt [edit]
[-] refcounting.txt [edit]
[-] gen.txt [edit]
[-] dict.txt [edit]
[-] sequence.txt [edit]
[-] weakref.txt [edit]
[-] set.txt [edit]
[-] int.txt [edit]
[-] class.txt [edit]
[-] float.txt [edit]
[-] objimpl.txt [edit]
[-] mapping.txt [edit]
[-] abstract.txt [edit]
[-] import.txt [edit]
[-] method.txt [edit]
[-] complex.txt [edit]
[-] concrete.txt [edit]
[-] iter.txt [edit]
[-] function.txt [edit]
[-] iterator.txt [edit]
[-] unicode.txt [edit]
[-] file.txt [edit]
[-] conversion.txt [edit]
[-] memory.txt [edit]
[-] bool.txt [edit]
[-] object.txt [edit]
[-] bytearray.txt [edit]
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[-] descriptor.txt [edit]
[-] arg.txt [edit]
[-] codec.txt [edit]
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[-] cell.txt [edit]
[-] number.txt [edit]
[-] objbuffer.txt [edit]
[-] sys.txt [edit]
[-] typeobj.txt [edit]
[-] exceptions.txt [edit]
[-] intro.txt [edit]
[-] allocation.txt [edit]
[-] structures.txt [edit]
[-] capsule.txt [edit]