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  1. PO
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    <p>Firstly, your <code>return</code> is inside the loop, so you don't ever loop several times. Change it to</p> <pre><code>def random_characters(number): i = 0 new_string = '' while (i &lt; number) : new_string = random.choice(string.ascii_lowercase) i = i + 1 return new_string # &lt;&lt;&lt; Dedent random_characters(3) #&gt;&gt;&gt; 'c' </code></pre> <p>Then you need to actually build <code>new_string</code>, not just set it each time. Build a <code>list</code> and then <code>"".join</code> it:</p> <pre><code>def random_characters(number): i = 0 letters = [] # Place to put the letters while (i &lt; number) : letters.append(random.choice(string.ascii_lowercase)) # &lt;&lt;&lt; Add the letter i = i + 1 return "".join(letters) # &lt;&lt;&lt; Join the letters into one string random_characters(3) #&gt;&gt;&gt; 'lgp' </code></pre> <p>Then you should use <code>for i in range(number)</code> instead of the <code>while</code> loop:</p> <pre><code>def random_characters(number): letters = [] for i in range(number): # &lt;&lt;&lt; Deals with i for you. letters.append(random.choice(string.ascii_lowercase)) return "".join(letters) random_characters(3) #&gt;&gt;&gt; 'xay' </code></pre> <p>And you can use a shortened version with a list comprehension:</p> <pre><code>def random_characters(number): # MAGIC! letters = [random.choice(string.ascii_lowercase) for i in range(number)] return "".join(letters) # &lt;&lt;&lt; Join the letters into one string random_characters(3) #&gt;&gt;&gt; 'yby' </code></pre> <hr> <p>If you're wanting to run this, you have several choices. Either you can run this in the <strong>interactive</strong> interpreter:</p> <pre><code>%~&gt; python -i random_characters.py &gt;&gt;&gt; random_characters(3) 'zgp' </code></pre> <p>or you can tell it to <code>print</code> the result inside the file:</p> <pre><code>print(random_characters(3)) # Python 3 print random_characters(3) # Python 2 </code></pre>
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    1. POGenerate random characters against specific loop condition
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    1. POGenerate random characters against specific loop condition
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    1. COJust a note: there's a convention (or, well, it's commonplace) to use `_` as a loop variable if you're not going to use it.
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      1. USThomas Orozco
 

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