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copied!<h1>About <a href="http://www.dabeaz.com/ply/ply.html" rel="nofollow noreferrer">PLY</a></h1> <p>PLY is a parser generator tool that uses reflection to read token definitions and production rules written in pure Python. You can, for example, define tokens with a simple string attribution or with methods containing a regular expression in its docstring.</p> <p>To install PLY on your machine for python2/3, follow the steps outlined below:</p> <ol> <li>Download the source code from <a href="http://www.dabeaz.com/ply/ply-3.10.tar.gz" rel="nofollow noreferrer">here</a>.</li> <li>Unzip the downloaded zip file</li> <li>Navigate into the unzipped <code>ply-3.10</code> folder</li> <li>Run the following command in your terminal: <code>python setup.py install</code></li> </ol> <p>If you completed all the above, you should now be able to use the PLY module. You can test it out by opening a python interpreter and typing <code>import ply.lex</code>.</p> <p>Note: Do <em>not</em> use <code>pip</code> to install PLY, it will install a broken distribution on your machine.</p> <hr> <p>Examples of token definitions with code to interpret value:</p> <pre><code>def t_BOOLEAN(token): r'(?:true|false)' token.value = token.value == "true" return token def t_NUMBER(token): r'[0-9]+' token.value = int(token.value) return token </code></pre> <hr> <ul> <li><p>Project page: <a href="http://www.dabeaz.com/ply/" rel="nofollow noreferrer">http://www.dabeaz.com/ply/</a></p></li> <li><p>Main docs: <a href="http://www.dabeaz.com/ply/ply.html" rel="nofollow noreferrer">http://www.dabeaz.com/ply/ply.html</a></p></li> </ul> <hr> <h1>Related tags:</h1> <ul> <li><a href="http://stackoverflow.com/tags/python"><strong>python</strong></a><br> The <a href="http://www.python.org" rel="nofollow noreferrer">Python Language</a></li> <li><a href="http://stackoverflow.com/tags/parsing"><strong>parsing</strong></a> </li> </ul>

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