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Surrogate vs. natural/business keys [closed]
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TedTed
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Difference between __getattr__ vs __getattribute__
...ew-style classes derive from object, old-style classes are those in Python 2.x with no explicit base class. But the distinction between old-style and new-style classes is not the important one when choosing between __getattr__ and __getattribute__.
You almost certainly want __getattr__.
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Deleting an object in java?
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172
You should remove the references to it by assigning null or leaving the block where it was decla...
What is the 'override' keyword in C++ used for? [duplicate]
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{
public:
int foo(float x) override { ... } // OK
}
class derived2: public base
{
public:
int foo(int x) override { ... } // ERROR
};
In derived2 the compiler will issue an error for "changing the type". Without override, at most the compiler would give a warning for "you are hid...
What must I know to use GNU Screen properly? [closed]
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edited Feb 12 at 1:59
CryogenicNeo
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answered Sep 16 '...
How can I strip the whitespace from Pandas DataFrame headers?
...o what you want.
In [5]: df
Out[5]:
Year Month Value
0 1 2 3
[1 rows x 3 columns]
In [6]: df.rename(columns=lambda x: x.strip())
Out[6]:
Year Month Value
0 1 2 3
[1 rows x 3 columns]
Note: that this returns a DataFrame object and it's shown as output o...
xcodebuild says does not contain scheme
... get things configured 100% correctly, but put into the wrong container or 2) put into the correct container, but configured improperly thus rendering data inaccessible by other parts of the system!
The default behavior of Xcode 4 schemes is to automatically generate new schemes as projects are add...
iPad browser WIDTH & HEIGHT standard
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277
The pixel width and height of your page will depend on orientation as well as the meta viewpor...
How can I use a DLL file from Python?
...he following example of ctypes is from actual code I've written (in Python 2.5). This has been, by far, the easiest way I've found for doing what you ask.
import ctypes
# Load DLL into memory.
hllDll = ctypes.WinDLL ("c:\\PComm\\ehlapi32.dll")
# Set up prototype and parameters for the desired f...
How are Anonymous inner classes used in Java?
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edited Sep 25 '18 at 12:52
Pool
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