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Matplotlib (pyplot) savefig outputs blank image

...values that depend whether or not T0 exists. Second, after plt.show() is called, a new figure is created. To deal with this, you can Call plt.savefig('tessstttyyy.png', dpi=100) before you call plt.show() Save the figure before you show() by calling plt.gcf() for "get current figure", then you ca...
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Create a custom event in Java

...else in the package interface ThrowListener { public void Catch(); } /*_____________________________________________________________*/class Thrower { //list of catchers & corresponding function to add/remove them in the list List<ThrowListener> listeners = new ArrayList<ThrowLis...
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How do I get a file extension in PHP?

...non ASCII characters, you need to set the locale first. E.G: setlocale(LC_ALL,'en_US.UTF-8'); Also, note this doesn't take into consideration the file content or mime-type, you only get the extension. But it's what you asked for. Lastly, note that this works only for a file path, not a URL resou...
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Like Operator in Entity Framework?

...attern in a specified expression, or zeros if the pattern is not found, on all valid text and character data types Namespace: System.Data.Objects.SqlClient Assembly: System.Data.Entity (in System.Data.Entity.dll) A bit of an explanation also appears in this forum thread. ...
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How to check if running in Cygwin, Mac or Linux?

... Usually, uname with its various options will tell you what environment you're running in: pax> uname -a CYGWIN_NT-5.1 IBM-L3F3936 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin pax> uname -s CYGWIN_NT-5.1 And, accordin...
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Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]

Like most web developers, I occasionally like to look at the source of websites to see how their markup is built. Tools like Firebug and Chrome Developer Tools make it easy to inspect the code, but if I want to copy a specific section and play around with it locally, it would be a pain to copy all t...
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Advantage of creating a generic repository vs. specific repository for each object?

... are any major advantages to creating a generic IRepository interface that all repositories implement, vs. each Repository having its own unique interface and set of methods. ...
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bash: pip: command not found

I downloaded pip and ran python setup.py install and everything worked just fine. The very next step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error "bash: pip: command not found". ...
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Is it possible to print a variable's type in standard C++?

...at I'm recommending below is: template <typename T> std::string type_name(); which would be used like this: const int ci = 0; std::cout << type_name<decltype(ci)>() << '\n'; and for me outputs: int const <disclaimer> I have not tested this on MSVC. </disclai...
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How to structure a express.js application?

... it. Of those, I think Twitter's matador is structured pretty well. We actually used a very similar approach to how they load up parts of the app. derby.js also looks extremely interesting. It's akin to meteor without all of the hype and actually gives credit where credit is due (notably, node and e...