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How do write IF ELSE statement in a MySQL query
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answered Jan 6 '12 at 19:32
Jack EdmondsJack Edmonds
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How to extract numbers from a string in Python?
...to extract only positive integers, try the following:
>>> str = "h3110 23 cat 444.4 rabbit 11 2 dog"
>>> [int(s) for s in str.split() if s.isdigit()]
[23, 11, 2]
I would argue that this is better than the regex example because you don't need another module and it's more readable b...
Why does ReSharper tell me “implicitly captured closure”?
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392
The warning tells you that the variables end and start stay alive as any of the lambdas inside...
How do I exchange keys with values in a dictionary?
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Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
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What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
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edited May 23 '17 at 12:26
Community♦
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answered Dec 31 '13 at 12:00
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How to redirect to a dynamic login URL in ASP.NET MVC
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30
I think the main issue is that if you're going to piggyback on the built-in ASP.NET FormsAuthen...
In Python, if I return inside a “with” block, will the file still close?
...nusual way of course).
It is also mentioned in one of the examples of PEP-343 which is the specification for the with statement:
with locked(myLock):
# Code here executes with myLock held. The lock is
# guaranteed to be released when the block is left (even
# if via return or by an un...
Are non-synchronised static methods thread safe if they don't modify static class variables?
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edited Nov 17 '15 at 17:38
Sled
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answered...
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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