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copied!<p>Firstly, it looks like you're using Python 3, so I'll respond accordingly.</p> <p>Maybe I'm not understanding your question, but it looks like the output you are getting is <em>exactly</em> what you want, <em>except</em> that Chinese characters are wider in your font.</p> <p>So UTF-8 is a red herring, since we are not talking about <em>bytes</em>, we are talking about <em>characters</em>. You are in Python 3, so all strings are Unicode. The underlying byte representation (where each of those Chinese characters is represented by three bytes) is irrelevant.</p> <p>You want to clip or pad each string to exactly 10 characters, and that is working correctly:</p> <pre><code>>>> len('hello, wor') 10 >>> len('hello, 世界 ') 10 >>> len('hello, 世rl') 10 </code></pre> <p>The only problem is that you are looking at it with what appears to be a monospaced font, but which actually <em>isn't</em>. Most monospaced fonts have this problem. All the normal Latin characters have exactly the same width in this font, but the Chinese characters are slightly wider. Therefore, the three characters <code>"世界 "</code> take up more horizontal space than the three characters <code>"wor"</code>. There isn't much you can do about this, aside from either a) getting a font which is truly monospaced, or b) calculating precisely how wide each character is in your font, and adding a number of spaces which approximately takes you to the same horizontal position (this will never be accurate).</p>

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