projects / OpenSPARC-T2-SAM / blame
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| 54 | ||
| 55 | <H1><A NAME="SECTION009000000000000000000"></A><A NAME="concrete"></A> | |
| 56 | <BR> | |
| 57 | 7. Concrete Objects Layer | |
| 58 | </H1> | |
| 59 | ||
| 60 | <P> | |
| 61 | The functions in this chapter are specific to certain Python object | |
| 62 | types. Passing them an object of the wrong type is not a good idea; | |
| 63 | if you receive an object from a Python program and you are not sure | |
| 64 | that it has the right type, you must perform a type check first; | |
| 65 | for example, to check that an object is a dictionary, use | |
| 66 | <tt class="cfunction">PyDict_Check()</tt>. The chapter is structured like the | |
| 67 | ``family tree'' of Python object types. | |
| 68 | ||
| 69 | <P> | |
| 70 | <span class="warning"><b class="label">Warning:</b> | |
| 71 | While the functions described in this chapter carefully check | |
| 72 | the type of the objects which are passed in, many of them do not check | |
| 73 | for <tt class="constant">NULL</tt> being passed instead of a valid object. Allowing <tt class="constant">NULL</tt> | |
| 74 | to be passed in can cause memory access violations and immediate | |
| 75 | termination of the interpreter.</span> | |
| 76 | ||
| 77 | <P> | |
| 78 | ||
| 79 | <p><br /></p><hr class='online-navigation' /> | |
| 80 | <div class='online-navigation'> | |
| 81 | <!--Table of Child-Links--> | |
| 82 | <A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a> | |
| 83 | ||
| 84 | <UL CLASS="ChildLinks"> | |
| 85 | <LI><A href="fundamental.html">7.1 Fundamental Objects</a> | |
| 86 | <UL> | |
| 87 | <LI><A href="typeObjects.html">7.1.1 Type Objects</a> | |
| 88 | <LI><A href="noneObject.html">7.1.2 The None Object</a> | |
| 89 | </ul> | |
| 90 | <LI><A href="numericObjects.html">7.2 Numeric Objects</a> | |
| 91 | <UL> | |
| 92 | <LI><A href="intObjects.html">7.2.1 Plain Integer Objects</a> | |
| 93 | <LI><A href="boolObjects.html">7.2.2 Boolean Objects</a> | |
| 94 | <LI><A href="longObjects.html">7.2.3 Long Integer Objects</a> | |
| 95 | <LI><A href="floatObjects.html">7.2.4 Floating Point Objects</a> | |
| 96 | <LI><A href="complexObjects.html">7.2.5 Complex Number Objects</a> | |
| 97 | <UL> | |
| 98 | <LI><A href="node39.html">7.2.5.1 Complex Numbers as C Structures</a> | |
| 99 | <LI><A href="node40.html">7.2.5.2 Complex Numbers as Python Objects</a> | |
| 100 | </ul> | |
| 101 | </ul> | |
| 102 | <LI><A href="sequenceObjects.html">7.3 Sequence Objects</a> | |
| 103 | <UL> | |
| 104 | <LI><A href="stringObjects.html">7.3.1 String Objects</a> | |
| 105 | <LI><A href="unicodeObjects.html">7.3.2 Unicode Objects</a> | |
| 106 | <UL> | |
| 107 | <LI><A href="builtinCodecs.html">7.3.2.1 Built-in Codecs</a> | |
| 108 | <LI><A href="unicodeMethodsAndSlots.html">7.3.2.2 Methods and Slot Functions</a> | |
| 109 | </ul> | |
| 110 | <LI><A href="bufferObjects.html">7.3.3 Buffer Objects</a> | |
| 111 | <LI><A href="tupleObjects.html">7.3.4 Tuple Objects</a> | |
| 112 | <LI><A href="listObjects.html">7.3.5 List Objects</a> | |
| 113 | </ul> | |
| 114 | <LI><A href="mapObjects.html">7.4 Mapping Objects</a> | |
| 115 | <UL> | |
| 116 | <LI><A href="dictObjects.html">7.4.1 Dictionary Objects</a> | |
| 117 | </ul> | |
| 118 | <LI><A href="otherObjects.html">7.5 Other Objects</a> | |
| 119 | <UL> | |
| 120 | <LI><A href="fileObjects.html">7.5.1 File Objects</a> | |
| 121 | <LI><A href="instanceObjects.html">7.5.2 Instance Objects</a> | |
| 122 | <LI><A href="method-objects.html">7.5.3 Method Objects</a> | |
| 123 | <LI><A href="moduleObjects.html">7.5.4 Module Objects</a> | |
| 124 | <LI><A href="iterator-objects.html">7.5.5 Iterator Objects</a> | |
| 125 | <LI><A href="descriptor-objects.html">7.5.6 Descriptor Objects</a> | |
| 126 | <LI><A href="slice-objects.html">7.5.7 Slice Objects</a> | |
| 127 | <LI><A href="weakref-objects.html">7.5.8 Weak Reference Objects</a> | |
| 128 | <LI><A href="cObjects.html">7.5.9 CObjects</a> | |
| 129 | <LI><A href="cell-objects.html">7.5.10 Cell Objects</a> | |
| 130 | <LI><A href="gen-objects.html">7.5.11 Generator Objects</a> | |
| 131 | <LI><A href="datetime-objects.html">7.5.12 DateTime Objects</a> | |
| 132 | </ul></ul> | |
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| 170 | <span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span> | |
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