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How do I parse XML in Python?
I have many rows in a database that contains XML and I'm trying to write a Python script to count instances of a particular node attribute.
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An expression tree may not contain a call or invocation that uses optional arguments
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The underlying expression tree API does not support optional arguments.
For IL-compiled code the C# compiler inserts the default values at compile time (hard-coded), because the CLR does not support calling methods with optional arguments e...
Difference between 'new operator' and 'operator new'?
... like your own container, you can call operator new directly, like:
char *x = static_cast<char *>(operator new(100));
It's also possible to overload operator new either globally, or for a specific class. IIRC, the signature is:
void *operator new(size_t);
Of course, if you overload an o...
Is there something like RStudio for Python? [closed]
...eased Rodeo 2.0 (native app not a browser tool) for Windows, Mac & Linux in 2016. It's a lot more stable than it was and has lots of new features like syntax highlighting and integrated tutorials. Definitely worth checking out if you like RStudio!
– Elise Breda
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Simpler way to create dictionary of separate variables?
...his?
dict( (name,eval(name)) for name in ['some','list','of','vars'] )
Example
>>> some= 1
>>> list= 2
>>> of= 3
>>> vars= 4
>>> dict( (name,eval(name)) for name in ['some','list','of','vars'] )
{'list': 2, 'some': 1, 'vars': 4, 'of': 3}
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Cannot run Eclipse; JVM terminated. Exit code=13
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Why do this() and super() have to be the first statement in a constructor?
...m in to your constructor and then pass them to super:
public MySubClassB extends MyClass {
public MySubClassB(Object[] myArray) {
super(myArray);
}
}
If the compiler did not enforce this you could do this:
public MySubClassB extends MyClass {
public MySubC...
How does lock work exactly?
...p = obj;
Monitor.Enter(temp);
try
{
// body
}
finally
{
Monitor.Exit(temp);
}
In C# 4.0 this has changed and it is now generated as follows:
bool lockWasTaken = false;
var temp = obj;
try
{
Monitor.Enter(temp, ref lockWasTaken);
// body
}
finally
{
if (lockWasTaken)
{
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NGinx Default public www location?
...rce yourself. In that case, the paths would be relative to whatever --prefix was used. If you didn't change it, it defaults to /usr/local/nginx. You can find the parameters nginx was compiled with via nginx -V, it lists --prefix as the first one.
Since the root directive defaults to html, this woul...
Link to all Visual Studio $ variables
...onment properties:
http://msdn.microsoft.com/en-us/library/ms171459.aspx
MSBuild reserved properties:
http://msdn.microsoft.com/en-us/library/ms164309.aspx
Well-known item properties (not sure how these are used):
http://msdn.microsoft.com/en-us/library/ms164313.aspx
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