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Access multiple elements of list knowing their index
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You can use operator.itemgetter:
from operator import itemgetter
a = [-2, 1, 5, 3, 8, 5, 6]
b = [1, 2, 5]
print(itemgetter(*b)(a))
# Result:
(1, 5, 5)
Or you can use numpy:
import numpy as np
a = np.array([-2, 1, 5, 3, 8, 5, 6])
b = [1, 2...
Capture Stored Procedure print output in .NET
Is it possible to capture print output from a T-SQL stored procedure in .NET?
3 Answers
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What is the difference between atomic and critical in OpenMP?
...mpletely general - it can surround any arbitrary block of code. You pay for that generality, however, by incurring significant overhead every time a thread enters and exits the critical section (on top of the inherent cost of serialization).
(In addition, in OpenMP all unnamed critical sections...
How to change line width in ggplot?
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Whilst @Didzis has the correct answer, I will expand on a few points
Aesthetics can be set or mapped within a ggplot call.
An aesthetic defined within aes(...) is mapped from the data, and a legend created.
An aesthetic may also be set to a singl...
Resize image proportionally with MaxHeight and MaxWidth constraints
...eImage(image, 300, 400))
{
newImage.Save(@"c:\test.png", ImageFormat.Png);
}
}
public static Image ScaleImage(Image image, int maxWidth, int maxHeight)
{
var ratioX = (double)maxWidth / image.Width;
var ratioY = (double)maxHeight / image.Height;
var ratio = Math.Min(rati...
Throwing exceptions from constructors
I'm having a debate with a co-worker about throwing exceptions from constructors, and thought I would like some feedback.
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How can I modify the size of column in a MySQL table?
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@Flimm seems to for me.
– deed02392
Dec 26 '13 at 21:44
41
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How can I find the version of the Fedora I use?
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cat /etc/issue
Or cat /etc/fedora-release as suggested by @Bruce ONeel
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What's the safest way to iterate through the keys of a Perl hash?
... effects. So, is that true, and is one of the two following methods best, or is there a better way?
9 Answers
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What is the difference between Python's list methods append and extend?
... What is the difference between extend and simply using the addition operator - in the above example, x = x + [4, 5]?
– Rohan
May 29 '17 at 22:10
315
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