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What is the advantage of using abstract classes instead of traits?
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answered Jan 2 '10 at 11:53
Mushtaq AhmedMushtaq Ahmed
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Can I redirect the stdout in python into some sort of string buffer?
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211
from cStringIO import StringIO # Python3 use: from io import StringIO
import sys
old_stdout =...
Python: Find in list
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1235
As for your first question: that code is perfectly fine and should work if item equals one of ...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
...cout << i*1000000000 << std::endl;
^
a.cpp:9:2: note: containing loop
for (int i = 0; i < 4; ++i)
^
The only way we can analyze what the program is doing, is by reading the generated assembly code.
Here is the full assembly listing:
.file "a.cpp"
.s...
Short description of the scoping rules?
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426
Actually, a concise rule for Python Scope resolution, from Learning Python, 3rd. Ed.. (These ru...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...e http://groups.google.com/group/android-developers/browse_thread/thread/9e215c83c3819953
* @see http://gskinner.com/blog/archives/2007/12/colormatrix_cla.html
* @param value degrees to shift the hue.
* @return
*/
public static ColorFilter adjustHue( float value )
{
ColorMatrix cm = new Colo...
Capturing Groups From a Grep RegEx
...ing stored in a variable
else
echo "$f doesn't match" >&2 # this could get noisy if there are a lot of non-matching files
fi
done
It's better to put the regex in a variable. Some patterns won't work if included literally.
This uses =~ which is Bash's regex match operator. ...
Changing the “tick frequency” on x or y axis in matplotlib?
...rt numpy as np
import matplotlib.pyplot as plt
x = [0,5,9,10,15]
y = [0,1,2,3,4]
plt.plot(x,y)
plt.xticks(np.arange(min(x), max(x)+1, 1.0))
plt.show()
(np.arange was used rather than Python's range function just in case min(x) and max(x) are floats instead of ints.)
The plt.plot (or ax.plot...
Pointers in Python?
... know Python doesn't have pointers, but is there a way to have this yield 2 instead
9 Answers
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