projects / OpenSPARC-T2-SAM / blame
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| 51 | <hr /></div> | |
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| 54 | ||
| 55 | <H2><A NAME="SECTION0052510000000000000000"></A><A NAME="interpreter-objects"></A> | |
| 56 | <BR> | |
| 57 | 3.25.1 Interactive Interpreter Objects | |
| 58 | ||
| 59 | </H2> | |
| 60 | ||
| 61 | <P> | |
| 62 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 63 | <td><nobr><b><tt id='l2h-748' xml:id='l2h-748' class="method">runsource</tt></b>(</nobr></td> | |
| 64 | <td><var>source</var><big>[</big><var>, filename</var><big>[</big><var>, symbol</var><big>]</big><var></var><big>]</big><var></var>)</td></tr></table></dt> | |
| 65 | <dd> | |
| 66 | Compile and run some source in the interpreter. | |
| 67 | Arguments are the same as for <tt class="function">compile_command()</tt>; the | |
| 68 | default for <var>filename</var> is <code>'<input>'</code>, and for | |
| 69 | <var>symbol</var> is <code>'single'</code>. One several things can happen: | |
| 70 | ||
| 71 | <P> | |
| 72 | ||
| 73 | <UL> | |
| 74 | <LI>The input is incorrect; <tt class="function">compile_command()</tt> raised an | |
| 75 | exception (<tt class="exception">SyntaxError</tt> or <tt class="exception">OverflowError</tt>). A | |
| 76 | syntax traceback will be printed by calling the | |
| 77 | <tt class="method">showsyntaxerror()</tt> method. <tt class="method">runsource()</tt> returns | |
| 78 | <code>False</code>. | |
| 79 | ||
| 80 | <P> | |
| 81 | </LI> | |
| 82 | <LI>The input is incomplete, and more input is required; | |
| 83 | <tt class="function">compile_command()</tt> returned <code>None</code>. | |
| 84 | <tt class="method">runsource()</tt> returns <code>True</code>. | |
| 85 | ||
| 86 | <P> | |
| 87 | </LI> | |
| 88 | <LI>The input is complete; <tt class="function">compile_command()</tt> returned a code | |
| 89 | object. The code is executed by calling the <tt class="method">runcode()</tt> (which | |
| 90 | also handles run-time exceptions, except for <tt class="exception">SystemExit</tt>). | |
| 91 | <tt class="method">runsource()</tt> returns <code>False</code>. | |
| 92 | </LI> | |
| 93 | </UL> | |
| 94 | ||
| 95 | <P> | |
| 96 | The return value can be used to decide whether to use | |
| 97 | <code>sys.ps1</code> or <code>sys.ps2</code> to prompt the next line. | |
| 98 | </dl> | |
| 99 | ||
| 100 | <P> | |
| 101 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 102 | <td><nobr><b><tt id='l2h-749' xml:id='l2h-749' class="method">runcode</tt></b>(</nobr></td> | |
| 103 | <td><var>code</var>)</td></tr></table></dt> | |
| 104 | <dd> | |
| 105 | Execute a code object. | |
| 106 | When an exception occurs, <tt class="method">showtraceback()</tt> is called to | |
| 107 | display a traceback. All exceptions are caught except | |
| 108 | <tt class="exception">SystemExit</tt>, which is allowed to propagate. | |
| 109 | ||
| 110 | <P> | |
| 111 | A note about <tt class="exception">KeyboardInterrupt</tt>: this exception may occur | |
| 112 | elsewhere in this code, and may not always be caught. The caller | |
| 113 | should be prepared to deal with it. | |
| 114 | </dl> | |
| 115 | ||
| 116 | <P> | |
| 117 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 118 | <td><nobr><b><tt id='l2h-750' xml:id='l2h-750' class="method">showsyntaxerror</tt></b>(</nobr></td> | |
| 119 | <td><var></var><big>[</big><var>filename</var><big>]</big><var></var>)</td></tr></table></dt> | |
| 120 | <dd> | |
| 121 | Display the syntax error that just occurred. This does not display | |
| 122 | a stack trace because there isn't one for syntax errors. | |
| 123 | If <var>filename</var> is given, it is stuffed into the exception instead | |
| 124 | of the default filename provided by Python's parser, because it | |
| 125 | always uses <code>'<string>'</code> when reading from a string. | |
| 126 | The output is written by the <tt class="method">write()</tt> method. | |
| 127 | </dl> | |
| 128 | ||
| 129 | <P> | |
| 130 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 131 | <td><nobr><b><tt id='l2h-751' xml:id='l2h-751' class="method">showtraceback</tt></b>(</nobr></td> | |
| 132 | <td><var></var>)</td></tr></table></dt> | |
| 133 | <dd> | |
| 134 | Display the exception that just occurred. We remove the first stack | |
| 135 | item because it is within the interpreter object implementation. | |
| 136 | The output is written by the <tt class="method">write()</tt> method. | |
| 137 | </dl> | |
| 138 | ||
| 139 | <P> | |
| 140 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 141 | <td><nobr><b><tt id='l2h-752' xml:id='l2h-752' class="method">write</tt></b>(</nobr></td> | |
| 142 | <td><var>data</var>)</td></tr></table></dt> | |
| 143 | <dd> | |
| 144 | Write a string to the standard error stream (<code>sys.stderr</code>). | |
| 145 | Derived classes should override this to provide the appropriate output | |
| 146 | handling as needed. | |
| 147 | </dl> | |
| 148 | ||
| 149 | <P> | |
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| 162 | <td class='online-navigation'><a rel="next" title="3.25.2 Interactive Console Objects" | |
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| 182 | </div> | |
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| 185 | <span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span> | |
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