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Use cases for the 'setdefault' dict method
...ders -- some are optional, but you want defaults for them:
headers = parse_headers( msg ) # parse the message, get a dict
# now add all the optional headers
for headername, defaultvalue in optional_headers:
headers.setdefault( headername, defaultvalue )
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Sorting multiple keys with Unix sort
I have potentially large files that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
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Creating a textarea with auto-resize
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Can Python print a function definition?
...pile a regular expression pattern, returning a pattern object."
return _compile(pattern, flags)
This will work in the interactive prompt, but apparently only on objects that are imported (not objects defined within the interactive prompt). And of course it will only work if Python can find th...
How to set focus on input field?
...d below.
– Ben Lesh
Aug 18 '13 at 3:32
3
hmm for me the code works, as in i can see it executing ...
Where to find Application Loader app in Mac?
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answered Sep 23 '19 at 16:32
AnsonAnson
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Mimicking sets in JavaScript?
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hymlothhymloth
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4
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Better way to sum a property value in an array
... be 0.
– Parziphal
Jul 12 '18 at 23:32
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如何获取IE (控件)的所有链接（包括Frameset, iframe） - 其他 - 清泛IT社...
来源：新浪博客
IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表：
CComPtr<IHTMLElement> body;
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CComPtr<IDispatch> spDispCollection;
body->get_all(&spDispCollection);复制代码所以要获取iframe/frame(frameset) ...
How to empty a list?
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it turns out that with python 2.5.2, del l[:] is slightly slower than l[:] = [] by 1.1 usec.
$...