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is_null($m>xm>) vs $m>xm> === null in PHP [duplicate]

...e related isset() language construct checks whether the variable actually em>xm>ists before doing the null check. So isset($undefinedVar) will not throw a notice. Also note that isset() may sometimes return true even though the value is null - this is the case when it is used on an overloaded object, i...
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Simple Digit Recognition OCR in OpenCV-Python

...of that letter. And this SOF helped me to find it. These 16 features are em>xm>plained in the paperLetter Recognition Using Holland-Style Adaptive Classifiers. ( Although I didn't understand some of the features at end) 2) Since I knew, without understanding all those features, it is difficult to do t...
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What is the purpose of Rank2Types?

...can write a function that takes different types of arguments without this em>xm>tension, you can't write a function that uses its argument as different types in the same invocation. For em>xm>ample the following function can't be typed without this em>xm>tension because g is used with different argument types ...
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Random hash in Python

...ne: import random hash = random.getrandbits(128) print("hash value: %032m>xm>" % hash) I don't really see the point, though. Maybe you should elaborate why you need this... share | improve this ans...
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How do I pronounce “=>” as used in lambda em>xm>pressions in .Net

... I usually say 'such that' when reading that operator. In your em>xm>ample, p => p.Age > 16 reads as "P, such that p.Age is greater than 16." In fact, I asked this very question on the official linq pre-release forums, and Anders Hejlsberg responded by saying I usually read the =&g...
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Check if list contains element that contains a string and get that element

... @JimIliadis "var" and "string" mean em>xm>actly the same thing in this case - the compiler is smart enough to know that the result can only be 'string'. var is really just a coding style thing (when not using anonymous types) – Dave Bish ...
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Controlling mouse with Python

... Tested on Winm>Xm>P, Python 2.6 (3.m>xm> also tested) after installing pywin32 (pywin32-214.win32-py2.6.em>xm>e in my case): import win32api, win32con def click(m>xm>,y): win32api.SetCursorPos((m>xm>,y)) win32api.mouse_event(win32con.MOUSEEVENTF_LEF...
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How to use/install gcc on Mac OS m>Xm> 10.8 / m>Xm>code 4.4

I have install Mountain Lion (Mac OS m>Xm> 10.8) and now gcc doesn't seem to be available anymore. I've also installed m>Xm>code 4.4 so there is no more /Developer directory. ...
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Getting the class name of an instance?

... Have you tried the __name__ attribute of the class? ie type(m>xm>).__name__ will give you the name of the class, which I think is what you want. >>> import itertools >>> m>xm> = itertools.count(0) >>> type(m>xm>).__name__ 'count' If you're still using Python 2, note ...
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How to sort a list of strings?

...f the list, without changing the original, use the sorted() function: for m>xm> in sorted(mylist): print m>xm> However, the em>xm>amples above are a bit naive, because they don't take locale into account, and perform a case-sensitive sorting. You can take advantage of the optional parameter key to specif...