projects / OpenSPARC-T2-SAM / blame
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| 54 | ||
| 55 | <H1><A NAME="SECTION006700000000000000000"> | |
| 56 | 4.7 <tt class="module">cStringIO</tt> -- | |
| 57 | Faster version of <tt class="module">StringIO</tt></A> | |
| 58 | </H1> | |
| 59 | ||
| 60 | <P> | |
| 61 | <A NAME="module-cStringIO"></A> | |
| 62 | ||
| 63 | <P> | |
| 64 | The module <tt class="module">cStringIO</tt> provides an interface similar to that of | |
| 65 | the <tt class="module"><a href="module-StringIO.html">StringIO</a></tt> module. Heavy use of <tt class="class">StringIO.StringIO</tt> | |
| 66 | objects can be made more efficient by using the function | |
| 67 | <tt class="function">StringIO()</tt> from this module instead. | |
| 68 | ||
| 69 | <P> | |
| 70 | Since this module provides a factory function which returns objects of | |
| 71 | built-in types, there's no way to build your own version using | |
| 72 | subclassing. Use the original <tt class="module"><a href="module-StringIO.html">StringIO</a></tt> module in that case. | |
| 73 | ||
| 74 | <P> | |
| 75 | Unlike the memory files implemented by the <tt class="module"><a href="module-StringIO.html">StringIO</a></tt> | |
| 76 | module, those provided by this module are not able to accept Unicode | |
| 77 | strings that cannot be encoded as plain ASCII strings. | |
| 78 | ||
| 79 | <P> | |
| 80 | Another difference from the <tt class="module"><a href="module-StringIO.html">StringIO</a></tt> module is that calling | |
| 81 | <tt class="function">StringIO()</tt> with a string parameter creates a read-only object. | |
| 82 | Unlike an object created without a string parameter, it does not have | |
| 83 | write methods. These objects are not generally visible. They turn up in | |
| 84 | tracebacks as <tt class="class">StringI</tt> and <tt class="class">StringO</tt>. | |
| 85 | ||
| 86 | <P> | |
| 87 | The following data objects are provided as well: | |
| 88 | ||
| 89 | <P> | |
| 90 | <dl><dt><b><tt id='l2h-958' xml:id='l2h-958'>InputType</tt></b></dt> | |
| 91 | <dd> | |
| 92 | The type object of the objects created by calling | |
| 93 | <tt class="function">StringIO</tt> with a string parameter. | |
| 94 | </dd></dl> | |
| 95 | ||
| 96 | <P> | |
| 97 | <dl><dt><b><tt id='l2h-959' xml:id='l2h-959'>OutputType</tt></b></dt> | |
| 98 | <dd> | |
| 99 | The type object of the objects returned by calling | |
| 100 | <tt class="function">StringIO</tt> with no parameters. | |
| 101 | </dd></dl> | |
| 102 | ||
| 103 | <P> | |
| 104 | There is a C API to the module as well; refer to the module source for | |
| 105 | more information. | |
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