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File: <b >Synopsis/import_processor.py</b><pre class="sxr"><a id="line1"></a><span class="lineno"> 1</span><span class="line"><span class="py-comment">#</span></span>
<a id="line2"></a><span class="lineno"> 2</span><span class="line"><span class="py-comment"># Copyright (C) 2003 Stefan Seefeld</span></span>
<a id="line3"></a><span class="lineno"> 3</span><span class="line"><span class="py-comment"># All rights reserved.</span></span>
<a id="line4"></a><span class="lineno"> 4</span><span class="line"><span class="py-comment"># Licensed to the public under the terms of the GNU LGPL (>= 2),</span></span>
<a id="line5"></a><span class="lineno"> 5</span><span class="line"><span class="py-comment"># see the file COPYING for details.</span></span>
<a id="line6"></a><span class="lineno"> 6</span><span class="line"><span class="py-comment">#</span></span>
<a id="line7"></a><span class="lineno"> 7</span>
<a id="line8"></a><span class="lineno"> 8</span><span class="line"><span class="py-keyword">def</span> <a href="../../Scopes/Synopsis/import_processor.html#import_processor">import_processor</a>(name, verbose=False):</span>
<a id="line9"></a><span class="lineno"> 9</span><span class="line"> <span class="py-string">"""Import a named processor and return it.</span></span>
<a id="line10"></a><span class="lineno">10</span><span class="line"><span class="py-string"> Throws ImportError on failure."""</span></span>
<a id="line11"></a><span class="lineno">11</span>
<a id="line12"></a><span class="lineno">12</span>
<a id="line13"></a><span class="lineno">13</span><span class="line"> i = name.rfind(<span class="py-string">'.'</span>)</span>
<a id="line14"></a><span class="lineno">14</span><span class="line"> <span class="py-keyword">if</span> i == -1:</span>
<a id="line15"></a><span class="lineno">15</span><span class="line"> <span class="py-keyword">raise</span> ImportError, <span class="py-string">'%s does not name a valid processor'</span>%name</span>
<a id="line16"></a><span class="lineno">16</span>
<a id="line17"></a><span class="lineno">17</span><span class="line"> module, processor = name[:i], name.split(<span class="py-string">'.'</span>)</span>
<a id="line18"></a><span class="lineno">18</span><span class="line"> mod = __import__(module)</span>
<a id="line19"></a><span class="lineno">19</span>
<a id="line20"></a><span class="lineno">20</span><span class="line"> <span class="py-keyword">for</span> c <span class="py-keyword">in</span> processor[1:]:</span>
<a id="line21"></a><span class="lineno">21</span><span class="line"> <span class="py-keyword">try</span>:</span>
<a id="line22"></a><span class="lineno">22</span><span class="line"> mod = getattr(mod, c)</span>
<a id="line23"></a><span class="lineno">23</span><span class="line"> <span class="py-keyword">except</span> AttributeError, msg:</span>
<a id="line24"></a><span class="lineno">24</span><span class="line"> <span class="py-keyword">raise</span> ImportError, <span class="py-string">"Unable to find %s in %s"</span>%(c, repr(mod))</span>
<a id="line25"></a><span class="lineno">25</span>
<a id="line26"></a><span class="lineno">26</span><span class="line"> <span class="py-keyword">return</span> mod</span>
<a id="line27"></a><span class="lineno">27</span>
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