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How to check if a python module exists without importing it

...le('eggs') found = True except ImportError: found = False To find dotted imports, you need to do more: import imp try: spam_info = imp.find_module('spam') spam = imp.load_module('spam', *spam_info) imp.find_module('eggs', spam.__path__) # __path__ is already a list found = T...
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Why doesn't the JVM cache JIT compiled code?

... ...or you could just offer persistence as an option, like Oracle's JVM does -- empower advanced programmers to optimize their application's performance when and where they just know the patterns are not changing, under their responsibility. Why not?! – Alex Martelli ...
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Undo working copy modifications of one file in Git?

...st commit, I modified a bunch of files in my working copy, but I want to undo the changes to one of those files, as in reset it to the same state as the most recent commit. ...
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How to mock localStorage in JavaScript unit tests?

... +1 - you could do this with sinon as well. The key is why bother tying to mock the entire localStorage object, just mock the methods (getItem and/or setItem) you are interested in. – s1mm0t Apr 5 '13 a...
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Can't use NVM from root (or sudo)

... that my application uses different version of NodeJS when running from sudo . 10 Answers ...
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Difference between System.DateTime.Now and System.DateTime.Today

...ateTimeKind.Local - which could lead to other errors depending on what you do with it. So, the simple answer is that DateTime.Today is equivalent to DateTime.Now.Date. But IMHO - You shouldn't use either one of these, or any of the above equivalents. When you ask for DateTime.Now, you are asking f...
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Loop through properties in JavaScript object with Lodash

....forOwn(). _.forOwn(obj, function(value, key) { } ); https://lodash.com/docs#forOwn Note that forOwn checks hasOwnProperty, as you usually need to do when looping over an object's properties. forIn does not do this check. ...
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Get host domain from URL?

how to get host domain from a string URL? 9 Answers 9 ...
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Inline functions vs Preprocessor macros

How does an inline function differ from a preprocessor macro? 14 Answers 14 ...
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How to check if a String contains only ASCII?

... +1 Although it's good if you don't need another third-party library, Colin's answer is much shorter and much more readable. Suggesting third-party libraries is perfectly OK and should not be punished with a negative vote. – Jesper ...