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| 51 | <BR><h2><A NAME="SECTION000100000000000000000"> |
| 52 | Contents</A> |
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| 54 | <!--Table of Contents--> |
| 55 | |
| 56 | <UL CLASS="TofC"> |
| 57 | <LI><A href="node2.html">1 PEP 218: Built-In Set Objects</a> |
| 58 | <LI><A href="node3.html">2 PEP 237: Unifying Long Integers and Integers</a> |
| 59 | <LI><A href="node4.html">3 PEP 289: Generator Expressions</a> |
| 60 | <LI><A href="node5.html">4 PEP 292: Simpler String Substitutions</a> |
| 61 | <LI><A href="node6.html">5 PEP 318: Decorators for Functions and Methods</a> |
| 62 | <LI><A href="node7.html">6 PEP 322: Reverse Iteration</a> |
| 63 | <LI><A href="node8.html">7 PEP 324: New subprocess Module</a> |
| 64 | <LI><A href="node9.html">8 PEP 327: Decimal Data Type</a> |
| 65 | <UL> |
| 66 | <LI><A href="node9.html#SECTION000910000000000000000">8.1 Why is Decimal needed?</a> |
| 67 | <LI><A href="node9.html#SECTION000920000000000000000">8.2 The Decimal type</a> |
| 68 | <LI><A href="node9.html#SECTION000930000000000000000">8.3 The Context type</a> |
| 69 | </ul> |
| 70 | <LI><A href="node10.html">9 PEP 328: Multi-line Imports</a> |
| 71 | <LI><A href="node11.html">10 PEP 331: Locale-Independent Float/String Conversions</a> |
| 72 | <LI><A href="node12.html">11 Other Language Changes</a> |
| 73 | <UL> |
| 74 | <LI><A href="node12.html#SECTION0001210000000000000000">11.1 Optimizations</a> |
| 75 | </ul> |
| 76 | <LI><A href="node13.html">12 New, Improved, and Deprecated Modules</a> |
| 77 | <UL> |
| 78 | <LI><A href="node13.html#SECTION0001310000000000000000">12.1 cookielib</a> |
| 79 | <LI><A href="node13.html#SECTION0001320000000000000000">12.2 doctest</a> |
| 80 | </ul> |
| 81 | <LI><A href="node14.html">13 Build and C API Changes</a> |
| 82 | <UL> |
| 83 | <LI><A href="node14.html#SECTION0001410000000000000000">13.1 Port-Specific Changes</a> |
| 84 | </ul> |
| 85 | <LI><A href="node15.html">14 Porting to Python 2.4</a> |
| 86 | <LI><A href="acks.html">15 Acknowledgements</a> |
| 87 | </ul> |
| 88 | <!--End of Table of Contents--> |
| 89 | <P> |
| 90 | This article explains the new features in Python 2.4, released in December |
| 91 | 2004. |
| 92 | |
| 93 | <P> |
| 94 | Python 2.4 is a medium-sized release. It doesn't introduce as many |
| 95 | changes as the radical Python 2.2, but introduces more features than |
| 96 | the conservative 2.3 release. The most significant new language |
| 97 | features are function decorators and generator expressions; most other |
| 98 | changes are to the standard library. |
| 99 | |
| 100 | <P> |
| 101 | According to the CVS change logs, there were 481 patches applied and |
| 102 | 502 bugs fixed between Python 2.3 and 2.4. Both figures are likely to |
| 103 | be underestimates. |
| 104 | |
| 105 | <P> |
| 106 | This article doesn't attempt to provide a complete specification of |
| 107 | every single new feature, but instead provides a brief introduction to |
| 108 | each feature. For full details, you should refer to the documentation |
| 109 | for Python 2.4, such as the <em class="citetitle"><a |
| 110 | href="../lib/lib.html" |
| 111 | title="Python Library |
| 112 | Reference" |
| 113 | >Python Library |
| 114 | Reference</a></em> and the <em class="citetitle"><a |
| 115 | href="../ref/ref.html" |
| 116 | title="Python Reference |
| 117 | Manual" |
| 118 | >Python Reference |
| 119 | Manual</a></em>. Often you will be referred to the PEP for a particular new |
| 120 | feature for explanations of the implementation and design rationale. |
| 121 | |
| 122 | <P> |
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