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Does Python have a ternary conditional operator?
...s ignored, or else when b is evaluated and returned but a is ignored.
This allows short-circuiting because when condition is true only a is evaluated and b is not evaluated at all, but when condition is false only b is evaluated and a is not evaluated at all.
For example:
>>> 'true' if True...
Directory-tree listing in Python
How do I get a list of all files (and directories) in a given directory in Python?
20 Answers
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Fixed width buttons with Bootstrap
...th.
If the parent is a fixed width element the button will expand to take all width. You can apply existing markup to the container to ensure fixed/fluid buttons take up only the required space.
<div class="span2">
<p><button class="btn btn-primary btn-block">Save</button>&...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...cross-use" %lf with float or %f with double.
But there's no reason to actually do it in practice. Don't use %f to printf arguments of type double. It is a widespread habit born back in C89/90 times, but it is a bad habit. Use %lf in printf for double and keep %f reserved for float arguments.
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`new function()` with lower case “f” in JavaScript
...er case "f" to define new objects in JavaScript. It seems to work well in all major browsers and it also seems to be fairly effective at hiding private variables. Here's an example:
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How to draw vertical lines on a given plot in matplotlib?
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Calling axvline in a loop, as others have suggested, works, but can be inconvenient because
Each line is a separate plot object, which causes things to be very slow when you have many lines.
When you create the legend each li...
What is pip's equivalent of `npm install package --save-dev`?
In nodejs, I can do npm install package --save-dev to save the installed package into the package.
8 Answers
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How does BitLocker affect performance? [closed]
I'm an ASP.NET / C# developer. I use VS2010 all the time. I am thinking of enabling BitLocker on my laptop to protect the contents, but I am concerned about performance degradation. Developers who use IDEs like Visual Studio are working on lots and lots of files at once. More than the usual office w...
How to get git diff with full context?
... the issue, but using a line count promises that it will work for even a small change in a very large file.
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PHP String to Float
I am not familiar with PHP at all and had a quick question.
8 Answers
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