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copied!<p>It's not entirely obvious from your code, but it looks like each line can have one "hit" at most; if that's indeed the case, then something like:</p> <pre><code>import re def parse_params(num_of_params, lines): sn = 'Names Params Optimize Upper Lower'.split() ks = '''paramName paramValue optimizeParam paramLowerBound paramUpperBound'''.split() vals = dict((k, []) for k in ks) are = re.compile(r'model\.(%s) (\d+) (.*)' % '|'.join(ks)) for line in lines: mo = are.search(line) if not mo: continue p = int(mo.group(2)) if p < 1 or p > num_of_params: continue vals[mo.group(1)].append(mo.group(3).rstrip()) for k, s in zip(ks, sn): print '%-8s =' % s, print vals[k] </code></pre> <p>might work -- I exercised it with a little code as follows:</p> <pre><code>if __name__ == '__main__': lines = '''model.paramUpperBound 1 ZAP model.paramLowerBound 1 zap model.paramUpperBound 5 nope'''.splitlines() parse_params(2, lines) </code></pre> <p>and it emits</p> <pre><code>Names = [] Params = [] Optimize = [] Upper = ['zap'] Lower = ['ZAP'] </code></pre> <p>which I think is what you want (if some details must differ, please indicate exactly what they are and let's see if we can fix it).</p> <p>The two key ideas are: use a <code>dict</code> instead of lots of <code>if</code>s; use a <code>re</code> to match "any of the following possibilities" with parenthesized groups in the re's pattern to catch the bits of interest (the keyword after <code>model.</code>, the integer number after that, and the "value" which is the rest of the line) instead of lots of <code>if x in y</code> checks and string manipulation.</p>

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