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Dealing with multiple Python versions and PIP?
...ple versions of Python? For example, I want to use pip to explicitly install things to either my site 2.5 installation or my site 2.6 installation.
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NumPy array initialization (fill with identical values)
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On my system (Python 2.7, Numpy 1.8), np.full() is actually slightly slower than np.empty() followed by np.fill().
– John Zwinck
Jul 25 '14 at 8:37
2
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What is the 'instanceof' operator used for in Java?
... Dog is Dog
dog instanceof Object // true - Object is the parent type of all objects
However, with Object animal = new Animal();,
animal instanceof Dog // false
because Animal is a supertype of Dog and possibly less "refined".
And,
dog instanceof Cat // does not even compile!
This is beca...
CSS3 Transparency + Gradient
...radient Generator over at Colorzilla which has a bunch of nice presets and all the cross browser compatible variations to achieve your desired gradient
– andrhamm
Nov 23 '11 at 16:16
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How to add to the PYTHONPATH in Windows, so it finds my modules/packages?
I have a directory which hosts all of my Django apps ( C:\My_Projects ). I want to add this directory to my PYTHONPATH so I can call the apps directly.
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Are the shift operators () arithmetic or logical in C?
...ependent for right shifts of signed values.
Wikipedia says that C/C++ 'usually' implements an arithmetic shift on signed values.
Basically you need to either test your compiler or not rely on it. My VS2008 help for the current MS C++ compiler says that their compiler does an arithmetic shift.
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C++ Tuple vs Struct
... not the purpose of this discussion so I won't dive into the detail.
We all know that writing a == or < or > operator for every single struct definition will be a painful and buggy task. Let replace our custom comparator using std::tie and rerun our benchmark.
bool operator<(const Str...
Default background color of SVG root element
...ways matches the viewport it gets, so it won't fill the entire viewport in all situations.
– Erik Dahlström
Jul 2 '12 at 12:48
1
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Cookies vs. sessions
...ad of sessions? I have just that reason (that I do not need to store internally information about the user). Is that enough as a reason ? or it's more than that?
Could you please tell me about advantages/disadvantages of using cookies for keeping User's ID?
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Responsively change div size keeping aspect ratio [duplicate]
...tio, but if I want the same effect with another element, is it possible at all to tie the width and the height together using percentage?
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