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python tuple to dict
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Try:
>>> t = ((1, 'a'),(2, 'b'))
>>> dict((y, x) for x, y in t)
{'a': 1, 'b': 2}
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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
...'s not the only ternary operator, just the most common one.
Here's a good example from Wikipedia demonstrating how it works:
A traditional if-else construct in C, Java and JavaScript is written:
if (a > b) {
result = x;
} else {
result = y;
}
This can be rewritten as the following state...
How to install Java SDK on CentOS?
I have CentOS 5, but I don't know the steps to install Java SDK on Linux.
12 Answers
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What is the advantage of GCC's __builtin_expect in if else statements?
I came across a #define in which they use __builtin_expect .
6 Answers
6
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Re-doing a reverted merge in Git
...t sounds. Look at the official document on this topic.
---o---o---o---M---x---x---W---x---Y
/
---A---B-------------------C---D
to allow:
---o---o---o---M---x---x-------x-------*
/ /
---A---B-------------------C---D
But does it al...
Pandas - Get first row value of a given column
... a ridiculously easy question... but I'm not seeing the easy answer I was expecting.
7 Answers
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What's the (hidden) cost of Scala's lazy val?
... answered Jun 15 '10 at 7:51
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Which icon sizes should my Windows application's icon include?
I have a Windows application which will run in Windows XP and newer (i.e. Vista/7). According to the Vista UI Guidelines , the standard sizes are 16x16, 32x32, 48x48, 256x256 (XP standard sizes do not include the 256x256 icon). In addition to those sizes, I also have 96x96 and 128x128 (and could cr...
What languages are Windows, Mac OS X and Linux written in?
I was just wondering who knows what programming languages Windows, Mac OS X and Linux are made up from and what languages are used for each part of the OS (ie: Kernel, plug-in architecture, GUI components, etc).
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How to Sort a List by a property in the object
...e Sort method, passing a Comparison<T> delegate:
objListOrder.Sort((x, y) => x.OrderDate.CompareTo(y.OrderDate));
If you prefer to create a new, sorted sequence rather than sort in-place then you can use LINQ's OrderBy method, as mentioned in the other answers.
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