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POHow can I improve this number2words script
 

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  1. POHow can I improve this number2words script
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    <pre><code>import sys words = { 1 : 'one', 2 : 'two', 3 : 'three', 4 : 'four', 5 : 'five', 6 : 'six', 7 : 'seven', 8 : 'eight', 9 : 'nine', 10 : 'ten', 11 : 'eleven', 12 : 'twelve', 13 : 'thirteen', 14 : 'fourteen', 15 : 'fifteen', 16 : 'sixteen', 17 : 'seventeen', 18 : 'eighteen', 19 : 'nineteen' } tens = [ '', 'twenty', 'thirty', 'forty', 'fifty', 'sixty', 'seventy', 'eighty', 'ninety', ] placeholders = [ '', 'thousand', 'million', 'billion', 'trillion', 'quadrillion' ] # segMag = segment magnitude (starting at 1) def convertTrio(number): return ' '.join([words[int(number[0])], 'hundred', convertDuo(number[1:3])]) # convertDuo(number[1:3]) def convertDuo(number): #if teens or less if int(number[0]) == 1: return words[int(number)] #twenty-five else: return tens[int(number[0]) - 1] + '-' + words[int(number[1])] if __name__ == "__main__": string = [] numeralSegments = [] numeral = sys.argv[1] if int(numeral) &lt; 100: print convertDuo(numeral) else: # split number into lists, grouped in threes for i in range (0, len(numeral), 3): numeralSegments.append(numeral[i:i+3]) numeralSegments.reverse() # for every segment, convert to trio word and append thousand, million, etc depending on magnitude for i in range (len(numeralSegments)): string.append(convertTrio(numeralSegments[i]) + ' ' + placeholders[i]) # reverse the list of strings before concatenating to commas string.reverse() print ', '.join(string) </code></pre> <p><strong>Warning</strong>: I'm a total python novice. I'm aware there are probably many times more efficient ways of doing things. I'd appreciate any pointers to them.</p> <p><strong>Edit</strong>: The code currently only works for numbers whose digit counts are multiples of three. I'd appreciate a suggestion for an elegant way to fix that as well. Thanks.</p>
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    1. COActually, this is not homework. This is just an exercise I'm doing to improve my Python skills.
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    2. CO`string` is a built-in Python module. It is a bad practice to use variable names that conflict with built-in names. You could use a `parts` instead of.
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    3. COHave you tried padding the number by zeros (to make a digit count to be multiples of three)?.
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