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Appending the same string to a list of strings in Python
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331
The simplest way to do this is with a list comprehension:
[s + mystring for s in mylist]
No...
What's the best way to set a single pixel in an HTML5 canvas?
... // only do this once per page
d[0] = r;
d[1] = g;
d[2] = b;
d[3] = a;
myContext.putImageData( id, x, y );
Use fillRect() to draw a pixel (there should be no aliasing issues):
ctx.fillStyle = "rgba("+r+","+g+","+b+","+(a/255)+")";
ctx.fillRect( x, y, 1, 1 );
You can test the ...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
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edited Feb 15 '18 at 3:57
community wiki
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How to access accelerometer/gyroscope data from Javascript?
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answered Jun 15 '19 at 13:52
strstr
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How do I convert dates in a Pandas data frame to a 'date' data type?
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Use astype
In [31]: df
Out[31]:
a time
0 1 2013-01-01
1 2 2013-01-02
2 3 2013-01-03
In [32]: df['time'] = df['time'].astype('datetime64[ns]')
In [33]: df
Out[33]:
a time
0 1 2013-01-01 00:00:00
1 2 20...
How to determine if binary tree is balanced?
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answered Feb 1 '10 at 16:33
Eric LippertEric Lippert
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What is the difference between a generative and a discriminative algorithm?
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13 Answers
13
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Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
...ecksum as your python script:
> echo -n mystringforhash | md5sum
86b6423cb6d211734fc7d81bbc5e11d3 -
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Is there a Python caching library?
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answered Sep 15 '09 at 13:52
Corbin MarchCorbin March
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Fastest method to escape HTML tags as HTML entities?
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edited Mar 31 '11 at 12:32
answered Mar 31 '11 at 12:26
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