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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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Quickly find whether a value is present in a C array?
...rt enough to unroll the loop. Here's a way to do it which incorporates the 3 ideas I mentioned in my comment: Loop unrolling, cache prefetch and making use of the multiple load (ldm) instruction. The instruction cycle count comes out to about 3 clocks per array element, but this doesn't take into ac...
Visual Studio C# statement collapsing
...g with VS 2010 version:
C# outline
C# outline
2012 (@MSDN)
C# outline
2013 (@MSDN)
C# outline
2015 (@MSDN)
Visual Basic and C# Outliner
The last extension supports only VS 2015 and VS 2017, but it's the most powerful one.
It supports syntax coloring inside collapsed blocks, it is more fault-tole...
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...
Django: Why do some model fields clash with each other?
...nternally.
– Kenny
Nov 18 '10 at 22:38
14
For someone just learning the framework, this would not...
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...
Auto column width in EPPlus
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253
Use AutoFitColumns, but you have to specify the cells, i assume the entire worksheet:
VB.NET
W...
Is there a Python caching library?
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answered Sep 15 '09 at 13:52
Corbin MarchCorbin March
24.5k66 gold badges6767 silver badges9797 bronze badges
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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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Fastest way to extract frames using ffmpeg?
...e frames uncompressed as BMP images:
ffmpeg -i file.mpg -r 1/1 $filename%03d.bmp
This also has the advantage of not incurring more quality loss through quantization by transcoding to JPEG. (PNG is also lossless but tends to take much longer than JPEG to encode.)
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