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What's the difference between :: (double colon) and -> (arrow) in PHP?

There are two distinct ways to access methods in PHP, but what's the difference? 6 Answers ...
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How to return PDF to browser in MVC?

...Add(new Paragraph("Hello World")); document.Add(new Paragraph(DateTime.Now.ToString())); document.Close(); byte[] byteInfo = workStream.ToArray(); workStream.Write(byteInfo, 0, byteInfo.Length); workStream.Position = 0; return new FileStreamResult(workStream, "application/p...
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One-liner to check whether an iterator yields at least one element?

... any won't go beyond the first element if it's True. In case the iterator yields something false-ish you can write any(True for _ in iterator). share | improve th...
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Creating Threads in python

...arg): for i in range(arg): print("running") sleep(1) if __name__ == "__main__": thread = Thread(target = threaded_function, args = (10, )) thread.start() thread.join() print("thread finished...exiting") Here I show how to use the threading module to create a t...
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How do I pass a method as a parameter in Python

...call__() is meant to be implemented, not to be invoked from your own code. If you wanted method1 to be called with arguments, then things get a little bit more complicated. method2 has to be written with a bit of information about how to pass arguments to method1, and it needs to get values for thos...
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Timeout function if it takes too long to finish [duplicate]

... Beware that this is not thread-safe: if you're using multithreading, the signal will get caught by a random thread. For single-threaded programs though, this is the easiest solution. – Wim Feb 17 '10 at 17:03 ...
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Is there any difference between “foo is None” and “foo == None”?

Is there any difference between: 12 Answers 12 ...
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std::enable_if to conditionally compile a member function

...ying to get a simple example to work to understand how to use std::enable_if . After I read this answer , I thought it shouldn't be too hard to come up with a simple example. I want to use std::enable_if to choose between two member-functions and allow only one of them to be used. ...
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What are all possible pos tags of NLTK?

... Now I'm curious: what is so mysterious about this? I have never really used NLTK, and finding that answer took me five minutes of googling and searching... Is it really that hidden? – phipsgabler ...
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How do I find the location of my Python site-packages directory?

...s where Python installs your local packages: python -m site --user-site If this points to a non-existing directory check the exit status of Python and see python -m site --help for explanations. Hint: Running pip list --user or pip freeze --user gives you a list of all installed per user site-pa...