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str performance in python
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As noted by thg435,
>>> Timer('"%s"%100000',).timeit()
0.034214019775390625
>>> Timer('"%s"%x','x=100000').timeit()
0.2940788269042969
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How do you split and unsplit a window/view in Eclipse IDE?
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319
This is possible with the menu items Window>Editor>Toggle Split Editor.
Current shortcut...
Interfaces — What's the point?
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answered Jul 23 '11 at 19:01
JoeyJoey
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Should I use `import os.path` or `import os`?
...Mike Graham
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How can I quantify difference between two images?
...ead images as 2D arrays (convert to grayscale for simplicity)
img1 = to_grayscale(imread(file1).astype(float))
img2 = to_grayscale(imread(file2).astype(float))
# compare
n_m, n_0 = compare_images(img1, img2)
print "Manhattan norm:", n_m, "/ per pixel:", n_m/img1.size
print "Z...
Nested Models in Backbone.js, how to approach
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edited Aug 29 '15 at 15:19
bernie
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answered Nov...
How do I focus on one spec in jasmine.js?
... fdescribe, fit
– basarat
Mar 19 '15 at 0:00
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Polymorphism in C++
...rtual Base& operator+=(int) = 0; };
struct X : Base
{
X(int n) : n_(n) { }
X& operator+=(int n) { n_ += n; return *this; }
int n_;
};
struct Y : Base
{
Y(double n) : n_(n) { }
Y& operator+=(int n) { n_ += n; return *this; }
double n_;
};
void f(Base& x) { x...
In Python, what is the difference between “.append()” and “+= []”?
...999
>>> timeit.Timer('s += ["something"]', 's = []').timeit()
0.41192320500000079
Python 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC v.1310 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Time...
Cannot change version of project facet Dynamic Web Module to 3.0?
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edited Mar 25 '15 at 19:08
Dave Jarvis
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