python - 你是否很难用 Python 保持 80 列？

Question

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Answer 1

我建议尽量坚持 80 列，但不要任何代价。有时，就像记录消息一样，让它们保持长久比分手更有意义。但对于大多数情况，如复杂条件或列表理解，分解是一个好主意，因为它会帮助您将复杂的逻辑划分为更容易理解的部分。更容易理解:

print sum(n for n in xrange(1000000) 
             if palindromic(n, bits_of_n) and palindromic(n, digits))

比:

print sum(n for n in xrange(1000000) if palindromic(n, bits_of_n) and palindromic(n, digits))

如果你刚写的，你可能看起来是一样的，但几天后那些长行就变得难以理解了。

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最后，虽然 PEP 8 规定了列限制，但它还说:

A style guide is about consistency. Consistency with this style guide is important. Consistency within a project is more important. Consistency within one module or function is most important.

But most importantly: know when to be inconsistent -- sometimes the style guide just doesn't apply. When in doubt, use your best judgment. Look at other examples and decide what looks best. And don't hesitate to ask!