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git pushes with wrong user from terminal
...roblem at work. The builtin git that ships with mac or comes when you install xcode caches git credentials in keychain. The fix for me was to:
start keychain access (start spotlight via cmd + space, type keychain, press enter)
Under keychains on the upper left, select "login"
Under category on t...
postgres default timezone
I installed PostgreSQL 9 and the time it is showing is 1 hour behind the server time.
7 Answers
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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...
Selecting element by data attribute
...d to select elements based on their data attribute? For example, select all anchors that has data attribute named customerID which has value of 22 .
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How do I disable log messages from the Requests library?
...WARNING)
If you wish to apply this setting for the urllib3 library (typically used by requests) too, add the following:
logging.getLogger("urllib3").setLevel(logging.WARNING)
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How to Sort a List by a property in the object
I have a class called Order which has properties such as OrderId , OrderDate , Quantity , and Total . I have a list of this Order class:
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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
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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...