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What is __main__.py?
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Often, a Python program is run by naming a .py file on the command line:
$ python my_program.py
You can also create a directory or zipfile full of code, and include a __main__.py. Then you can simply name the directory or zipfile on the command line, and it executes the __main__....
Logger slf4j advantages of formatting with {} instead of string concatenation
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Why can't I forward-declare a class in a namespace using double colons?
... class Class is later defined as a member of different namespace - it is a completely different class that has nothing to do with the one you declared here.
Once you get to the point of defining the pre-declared class, you don't need to "reopen" the namespace again. You can define it in the global ...
Converting XDocument to XmlDocument and vice versa
...eader);
}
}
}
}
Sources:
http://msdn.microsoft.com/en-us/library/bb356384.aspx
http://geekswithblogs.net/aspringer/archive/2009/07/01/xdocument-extension.aspx
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Why does Java's Arrays.sort method use two different sorting algorithms for different types?
...age case, quicksort is faster than mergesort. Although quicksort does more compares than mergesort, it does much less array accesses. 3-way quicksort can also achieve linear time if the input contains a lot of duplicated entries which is not unusual in practical applications (My guess is that dual p...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...y the warning is unimportant in this particular case.
The reason that the compiler gives this warning is because marking a field as volatile means "this field is going to be updated on multiple threads -- do not generate any code that caches values of this field, and make sure that any reads or wri...
Java - JPA - @Version annotation
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How To Check If A Key in **kwargs Exists?
... Thanks for the extra explanation! Always good for python newcomers to get some background info and further examples of what is possible and what isn't. In that spirit: I think, kwargs.get("errormessage", 17) might return its value or 17 if errormessage doesn't exist - but I'm not sure...
Upgrade Node.js to the latest version on Mac OS
...8.18 to v0.10.20 without any other requirements like brew etc, (type these commands in the terminal):
sudo npm cache clean -f (force) clear you npm cache
sudo npm install -g n install n (this might take a while)
sudo n stable upgrade to the current stable version
Note that sudo might prompt your...