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python ? (conditional/ternary) operator for assignments [duplicate]
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Python has such an operator:
variable = something if condition else something_else
Alternatively, although not recommended (see @karadoc's comment):
variable = (condition and something) or something_else
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Only mkdir if it does not exist [duplicate]
...ld send a message to the user and ask for input, abort, or do other things if [[ -e dir && ! -d dir ]] is valid.
– konsolebox
Sep 4 '13 at 22:17
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Dynamically Changing log4j log level
What are the different approaches for changing the log4j log level dynamically, so that I will not have to redeploy the application. Will the changes be permanent in those cases?
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Difference between window.location.href=window.location.href and window.location.reload()
What is the difference between JavaScript's
12 Answers
12
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How do C++ class members get initialized if I don't do it explicitly?
...emebers ptr , name , pname , rname , crname and age . What happens if I don't initialize them myself? Here is an example:
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ImportError in importing from sklearn: cannot import name check_build
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Check if there is a file called "sklearn" in the same folder. Try running from a different folder. Solved it for me (my fault). Find file with <ls | grep -i "sklearn">
– Punnerud
Mar 3 '...
What is Ruby's double-colon `::`?
...affect instance methods defined on a class, since you access those with a different syntax (the dot .).
Relevant note: If you want to go back to the top-level namespace, do this: ::SomeModule – Benjamin Oakes
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How do I abort/cancel TPL Tasks?
...do some heavy work here
Thread.Sleep(100);
if (ct.IsCancellationRequested)
{
// another thread decided to cancel
Console.WriteLine("task canceled");
break;
}
}
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Numpy index slice without losing dimension information
...y little reason to retain the dimension of the array the slice came from. If you did, then things like:
a = np.zeros((100,100,10))
b = np.zeros(100,10)
a[0,:,:] = b
either wouldn't work or would be much more difficult to implement.
(Or at least that's my guess at the numpy dev's reasoning beh...
How to make pipes work with Runtime.exec()?
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@Kaj What if you wanted to add options to ls i.e. ls -lrt ?
– kaustav datta
May 6 '13 at 6:25
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