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Is it possible for a unit test to assert that a method calls sys.exit()

... 155 Yes. sys.exit raises SystemExit, so you can check it with assertRaises: with self.assertRaise...
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Saving a Numpy array as an image

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What does the [Flags] Enum Attribute mean in C#?

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How to sort objects by multiple keys in Python?

...ns): from operator import itemgetter comparers = [((itemgetter(col[1:].strip()), -1) if col.startswith('-') else (itemgetter(col.strip()), 1)) for col in columns] def comparer(left, right): for fn, mult in comparers: result = cmp(fn(left), fn(right))...
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How to initialize array to 0 in C?

... are automatically initialized to zero. If you have simply char ZEROARRAY[1024]; at global scope it will be all zeros at runtime. But actually there is a shorthand syntax if you had a local array. If an array is partially initialized, elements that are not initialized receive the value 0 of the a...
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How can I check if a URL exists via PHP?

...ders = @get_headers($file); if(!$file_headers || $file_headers[0] == 'HTTP/1.1 404 Not Found') { $exists = false; } else { $exists = true; } From here and right below the above post, there's a curl solution: function url_exists($url) { return curl_init($url) !== false; } ...
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Most efficient way to reverse a numpy array

... something like this: arr = np.array(some_sequence) reversed_arr = arr[::-1] do_something(arr) look_at(reversed_arr) do_something_else(arr) look_at(reversed_arr) I'm not a numpy expert, but this seems like it would be the fastest way to do things in numpy. If this is what you are already doing,...
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How to check if PHP array is associative or sequential?

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delete map[key] in go?

... 165 Strangely enough, package main func main () { var sessions = map[string] chan int{}; ...
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Android : Check whether the phone is dual SIM

... 184 Update 23 March'15 : Official multiple SIM API is available now from Android 5.1 onwards ...