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Should I use `import os.path` or `import os`?
... Wow, os.py does indeed inject into sys.modules['os.path']. So this is why from os.path import something actually works. I was curious about when this was introduced and checked the source. Fun fact: This is from 1999, first included in Python 1.5.2. Original commit is here.
– ...
Very large matrices using Python and NumPy
NumPy is an extremely useful library, and from using it I've found that it's capable of handling matrices which are quite large (10000 x 10000) easily, but begins to struggle with anything much larger (trying to create a matrix of 50000 x 50000 fails). Obviously, this is because of the massive memo...
Member '' cannot be accessed with an instance reference
...MyItem.Property1
to refer to that property or remove the static modifier from Property1 (which is what you probably want to do). For a conceptual idea about what static is, see my other answer.
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How to change a command line argument in Bash?
...ded to the two (hence the 2 in the notation) positional arguments starting from offset 1 (i.e. $1). It is a shorthand for "$1" "$2" in this case, but it is much more useful when you want to replace e.g. "${17}".
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PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI
...y string, some redirection, some aliases, on different operating systems, from CLI vs SERVER, etc.
– user2066805
Dec 15 '15 at 22:35
4
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Check if $_POST exists
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if( isset($_POST['fromPerson']) )
{
$fromPerson = '+from%3A'.$_POST['fromPerson'];
echo $fromPerson;
}
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How to use base class's constructors and assignment operator in C++?
...= d;}
Normally copy constructors chain so that they are copy constructed from the base up. Here because you are calling the assignment operator the copy constructor must call the default constructor to default initialize the object from the bottom up first. Then you go down again using the assignm...
What does it mean by buffer?
...ing candy out of a bowl. You take one piece regularly. To prevent the bowl from running out, someone might refill the bowl before it gets empty, so that when you want to take another piece, there's candy in the bowl.
The bowl acts as a buffer between you and the candy bag.
If you're watching a mo...
Static Classes In Java
...ed or instance fields accessed
Note that the compiler will not prevent you from declaring an instance (non-static) member. The issue will only show up if you attempt to call the instance member
Simple example per suggestions from above:
public class TestMyStaticClass {
public static void mai...
Secure Web Services: REST over HTTPS vs SOAP + WS-Security. Which is better? [closed]
...iated by you.
WS-Security offers confidentiality and integrity protection from the creation of the message to it's consumption. So instead of ensuring that the content of the communications can only be read by the right server it ensures that it can only be read by the right process on the server. ...