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How can I generate a unique ID in Python? [duplicate]

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+ operator for array in PHP?

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Expand a random range from 1–5 to 1–7

...t a non-zero. That's what this code is doing: the i and j indexes randomly select a location on the dart board, and if we don't get a good result, we keep throwing darts. Like Adam said, this can run forever in the worst case, but statistically the worst case never happens. :) ...
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What does it mean to “program to an interface”?

...a. In Java or C# that means using public properties and methods instead of raw field access. For C that means using functions instead of raw pointers. EDIT: And with databases it means using views and stored procedures instead of direct table access. ...
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Get first n characters of a string

...o trim a string to a specific number of characters, and append '...' if needed? 19 Answers ...
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Terminal Multiplexer for Microsoft Windows - Installers for GNU Screen or tmux [closed]

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What is the correct SQL type to store a .Net Timespan with values > 24:00:00?

... I'd probably convert the ticks into a time object like this: SELECT CAST(DATEADD(MILLISECOND, @Ticks/CAST(10000 AS BIGINT), '1900-01-01') AS TIME). The '1900-01-01' date doesn't matter, of course, it's just the third variable required by the DATEADD(...) function. Remember there are 10...
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How to easily resize/optimize an image size with iOS?

...e:(CGSize)newSize; { UIGraphicsBeginImageContext( newSize ); [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)]; UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return newImage; } As far as storage of the image, the fastest...
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How do I hide an element when printing a web page?

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How can I improve my paw detection?

... I'll give it a whack... To detect individual paws, you should first only select everything with a pressure greater than some small threshold, very close to no pressure at all. Every pixel/point that is above this should be "marked." Then, every pixel adjacent to all "marked" pixels becomes marke...