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How to make a flat list out of list of lists?

... Given a list of lists l, flat_list = [item for sublist in l for item in sublist] which means: flat_list = [] for sublist in l: for item in sublist: flat_list.append(item) is faster than the shortcuts posted so far. (l is the list to flatten.) Her...
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How would I get a cron job to run every 30 minutes?

...and 30 minutes past the hour or something close. I have the following, but it doesn't seem to run on 0. 6 Answers ...
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AngularJS best practices for module declaration?

... 'Best' way to declare a module As angular is on the global scope itself and modules are saved to its variable you can access modules via angular.module('mymod'): // one file // NOTE: the immediately invoked function expression // is used to exemplify different files and is not required (...
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What are the underlying data structures used for Redis?

I'm trying to answer two questions in a definitive list: 3 Answers 3 ...
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What do the crossed style properties in Google Chrome devtools mean?

... When a CSS property shows as struck-through, it means that the crossed-out style was applied, but then overridden by a more specific selector, a more local rule, or by a later property within the same rule. (Special cases: a style will also be shown as struck-through ...
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Eclipse does not highlight matching variables

... Try: window > preferences > java > editor > mark occurrences Select all options available there. Also go to: Preferences > General > Editors > Text Editors > Annotations Compare the settings for 'Occurrences' and 'Write Occurrences' Make s...
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How to normalize a NumPy array to within a certain range?

After doing some processing on an audio or image array, it needs to be normalized within a range before it can be written back to a file. This can be done like so: ...
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Branch from a previous commit using Git

If I have n commits, how can I branch from the n-3 commit? 19 Answers 19 ...
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iPhone system font

...a as the system font. iPod models released prior to the iPhone use either Chicago, Espy Sans, or Myriad and use Helvetica after the release of the iPhone. From http://www.everyipod.com/iphone-faq/iphone-who-designed-iphone-font-used-iphone-ringtones.html For iOS9 it has changed to San ...
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What does the keyword Set actually do in VBA?

Hopefully an easy question, but I'd quite like a technical answer to this! 7 Answers 7...