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Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
I'm hoping someone can provide some insight as to what's fundamentally different about the Java Virtual Machine that allows it to implement threads nicely without the need for a Global Interpreter Lock (GIL), while Python necessitates such an evil.
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Purpose of #!/usr/bin/python3
I have noticed this in a couple of scripting languages, but in this example, I am using python. In many tutorials, they would start with #!/usr/bin/python3 on the first line. I don't understand why we have this.
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How to trigger event when a variable's value is changed?
I'm currently creating an application in C# using Visual Studio. I want to create some code so that when a variable has a value of 1 then a certain piece of code is carried out.
I know that I can use an if statement but the problem is that the value will be changed in an asynchronous process so tech...
Can you list the keyword arguments a function receives?
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A little nicer than inspecting the code object directly and working out the variables is to use the inspect module.
>>> import inspect
>>> def func(a,b,c=42, *args, **kwargs): pass
>>> inspect.getargspec(func)
(['a', ...
Truncate a list to a given number of elements
...hat method truncates a list--for example to the first 100 elements--discarding the others (without iterating through individual elements)?
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What does iota of std::iota stand for?
I'm assuming the "i" is increment and the "a" is assign, but I could not figure out or find the answer. Also, it looks very similar to the non-standard itoa which I think is confusing.
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string c_str() vs. data()
...ve read several places that the difference between c_str() and data() (in STL and other implementations) is that c_str() is always null terminated while data() is not.
As far as I have seen in actual implementations, they either do the same or data() calls c_str() .
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Automatically plot different colored lines
I'm trying to plot several kernel density estimations on the same graph, and I want them to all be different colors. I have a kludged solution using a string 'rgbcmyk' and stepping through it for each separate plot, but I start having duplicates after 7 iterations. Is there an easier/more efficien...
“You are on a branch yet to be born” when adding git submodule
I am attempting to add a few submodules to my .vim/bundles directory, and when I attempt to add this particular repo Git gives me a strange error I've never seen before:
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What's wrong with Groovy multi-line String?
...L marker (such as ;) it gets confused if you put the operator on the following line
This would work instead:
def a = "test" +
"test" +
"test"
as the Groovy parser knows to expect something on the following line
Groovy sees your original def as three separate statements. The first assigns t...