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Why does multiprocessing use only a single core after I import numpy?
...affinity on import. As far as I can tell, this problem seems to be specifically caused by them linking against multithreaded OpenBLAS libraries.
A workaround is to reset the task affinity using
os.system("taskset -p 0xff %d" % os.getpid())
With this line pasted in after the module imports, my ex...
How to get values from IGrouping
...> implements IEnumerable<TElement>, you can use SelectMany to put all the IEnumerables back into one IEnumerable all together:
List<smth> list = new List<smth>();
IEnumerable<IGrouping<int, smth>> groups = list.GroupBy(x => x.id);
IEnumerable<smth> smths = ...
How to make the tab character 4 spaces instead of 8 spaces in nano?
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Hi @Alexey . This Linux Shell command works for all files, but make sure to specify another output-file, otherwise your file will be emptied.
– Sven Rojek
Oct 9 '17 at 13:42
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Change branch base
...o be clear which branch to be on.
git rebase --onto master demo PRO
Basically, you take all the commits from after demo up to PRO, and rebase them onto the master commit.
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CSS Selector for
Is there any way with CSS to target all inputs based on their type? I have a disabled class I use on various disabled form elements, and I'm setting the background color for text boxes, but I don't want my checkboxes to get that color.
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Does Python support multithreading? Can it speed up execution time?
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The GIL does not prevent threading. All the GIL does is make sure only one thread is executing Python code at a time; control still switches between threads.
What the GIL prevents then, is making use of more than one CPU core or separate CPUs to run threads in...
pyplot scatter plot marker size
...This can be a somewhat confusing way of defining the size but you are basically specifying the area of the marker. This means, to double the width (or height) of the marker you need to increase s by a factor of 4. [because A = WH => (2W)(2H)=4A]
There is a reason, however, that the size of mark...
Add a dependency in Maven
...d you're just trying to add your JAR to your local repository, you can install it as follows, using any arbitrary groupId/artifactIds:
mvn install:install-file -DgroupId=com.stackoverflow... -DartifactId=yourartifactid... -Dversion=1.0 -Dpackaging=jar -Dfile=/path/to/jarfile
You can also deploy it ...
How does the “final” keyword in Java work? (I can still modify an object.)
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You are always allowed to initialize a final variable. The compiler makes sure that you can do it only once.
Note that calling methods on an object stored in a final variable has nothing to do with the semantics of final. In other words:...
Make page to tell browser not to cache/preserve input values
...sers. Another alternative is to use Javascript/jQuery to explicitly untick all checkboxes on page load.
– DisgruntledGoat
Apr 28 '10 at 10:28
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