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| 54 | <H1><A NAME="SECTION004000000000000000000"></A><A NAME="defining-new-types"></A> |
| 55 | <BR> |
| 56 | 2. Defining New Types |
| 57 | |
| 58 | </H1> |
| 59 | |
| 60 | <P> |
| 61 | As mentioned in the last chapter, Python allows the writer of an |
| 62 | extension module to define new types that can be manipulated from |
| 63 | Python code, much like strings and lists in core Python. |
| 64 | |
| 65 | <P> |
| 66 | This is not hard; the code for all extension types follows a pattern, |
| 67 | but there are some details that you need to understand before you can |
| 68 | get started. |
| 69 | |
| 70 | <P> |
| 71 | <div class="note"><b class="label">Note:</b> |
| 72 | The way new types are defined changed dramatically (and for the |
| 73 | better) in Python 2.2. This document documents how to define new |
| 74 | types for Python 2.2 and later. If you need to support older |
| 75 | versions of Python, you will need to refer to older versions of this |
| 76 | documentation. |
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| 87 | <LI><A href="dnt-basics.html">2.1 The Basics</a> |
| 88 | <UL> |
| 89 | <LI><A href="node22.html">2.1.1 Adding data and methods to the Basic example</a> |
| 90 | <LI><A href="node23.html">2.1.2 Providing finer control over data attributes</a> |
| 91 | <LI><A href="node24.html">2.1.3 Supporting cyclic garbage collection</a> |
| 92 | </ul> |
| 93 | <LI><A href="dnt-type-methods.html">2.2 Type Methods</a> |
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| 95 | <LI><A href="node26.html">2.2.1 Finalization and De-allocation</a> |
| 96 | <LI><A href="node27.html">2.2.2 Object Presentation</a> |
| 97 | <LI><A href="node28.html">2.2.3 Attribute Management</a> |
| 98 | <UL> |
| 99 | <LI><A href="node29.html">2.2.3.1 Generic Attribute Management</a> |
| 100 | <LI><A href="node30.html">2.2.3.2 Type-specific Attribute Management</a> |
| 101 | </ul> |
| 102 | <LI><A href="node31.html">2.2.4 Object Comparison</a> |
| 103 | <LI><A href="node32.html">2.2.5 Abstract Protocol Support</a> |
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