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Circular list iterator in Python

... Output: a b c a b c ... (Loops forever, obviously) In order to manually advance the iterator and pull values from it one by one, simply call next(pool): >>> next(pool) 'a' >>> next(pool) 'b' share...
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Why is list initialization (using curly braces) better than the alternatives?

... Basically copying and pasting from Bjarne Stroustrup's "The C++ Programming Language 4th Edition": List initialization does not allow narrowing (§iso.8.5.4). That is: An integer cannot be converted to another integer that cann...
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How to redirect output of an entire shell script within the script itself?

Is it possible to redirect all of the output of a Bourne shell script to somewhere, but with shell commands inside the script itself? ...
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What is a regular expression which will match a valid domain name without a subdomain?

... This should match all cases I think: ^([a-z0-9])(([a-z0-9-]{1,61})?[a-z0-9]{1})?(\.[a-z0-9](([a-z0-9-]{1,61})?[a-z0-9]{1})?)?(\.[a-zA-Z]{2,4})+$ – transilvlad May 16 '13 at 16:38 ...
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SQlite Getting nearest locations (with latitude and longitude)

...n. 2) Now you can loop on these filtered data and determine if they are really near your point (in the circle) or not using the following methods: public static boolean pointIsInCircle(PointF pointForCheck, PointF center, double radius) { if (getDistanceBetweenTwoPoints(pointFo...
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Create a pointer to two-dimensional array

...d T[10] are different types. The following alternative doesn't work at all, because the element type of the array, when you view it as a one-dimensional array, is not uint8_t, but uint8_t[20] uint8_t *matrix_ptr = l_matrix; // fail The following is a good alternative uint8_t (*matrix_ptr)[...
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Equivalent of jQuery .hide() to set visibility: hidden

...n example on how to support additional parameters of show (speed, easing, callback)? – georg Mar 8 '12 at 8:57 11 ...
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Manually raising (throwing) an exception in Python

... How do I manually throw/raise an exception in Python? Use the most specific Exception constructor that semantically fits your issue. Be specific in your message, e.g.: raise ValueError('A very specific bad thing happened.') Don't ...
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What does the Ellipsis object do?

While idly surfing the namespace I noticed an odd looking object called Ellipsis , it does not seem to be or do anything special, but it's a globally available builtin. ...
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Trying to login to RDP using AS3

...emporary ByteArray that has its endian set to big, write data in it, then call writeBytes() on your main buffer array, then clear the temporary big endian array. Writing constants can be done manually, since you can shift the byte order yourself, say when you are writing 0x0005 in big endian as shor...