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    <p>So far, this has nothing to do with minimazation of automata, right? You are trying to create an automaton from some (given) file format.</p> <p>Since this is a homework, I'll just give you some hints:</p> <p><code>readlines</code> returns a list. You can address specific lines by index, i.e., <code>lines[0]</code> for the first line, <code>lines[1]</code>, for the second, etc. Each of these lines will be a string. Taking, for instance, the line containing the set of states (<code>lines[0]</code>, which holds <code>'dyny,fllf,gdci,gwtj,knos,kole,mjnw,msdl,mtfz,nbat,njgb,nzwx,rzpn,vcsc,zgfx'</code>), you can use</p> <p><code>lines[0].split(',')</code></p> <p>to split it by comma, which gives you a list of strings, each of which represents a state. Those lines which represent individual transitions follow a slightly more complicated format: </p> <p><code>&lt;state&gt;','&lt;input symbol&gt;'-&gt;'&lt;next state&gt;</code></p> <p>You want to parse those lines so that you get the three components depicted above. <code>string.split</code> is again your friend here. You should also decide on a suitable datastructure for the transition function (delta).</p> <p>Note: <code>readlines</code> reads the entire file at once. In practice, automata are often quite big in which case it would be better to read the file incrementally. File objects (<code>f</code> in your code) implement the iterator protocol and allow you to iterate over the file's lines. In particular, I would suggest to use</p> <pre><code>line1 = f.next() # Next line (first line, if first call of next) line2 = f.next() # Next line ... </code></pre> <p>for the first four lines (to get the set of states, etc) and to iterate over the rest (the transitions):</p> <pre><code>for line in f: ... </code></pre> <p>See <a href="http://docs.python.org/tutorial/inputoutput.html" rel="nofollow">http://docs.python.org/tutorial/inputoutput.html</a> for details.</p>
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    1. POminimizing dfa in python
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    1. COthanks for this. Yes, my idea is first to create automaton from given file, and then minimize it. Is it good way or should I skip this step?
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    2. CONo, it's OK to do it like that. But you should probably change the title of your question to something more appropriate.
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