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What is the difference between setUp() and setUpClass() in Python unittest?

... is the difference between setUp() and setUpClass() in the Python unittest framework? Why would setup be handled in one method over the other? ...
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Create an array with same element repeated multiple times

...return a; } It doubles the array in each iteration, so it can create a really large array with few iterations. Note: You can also improve your function a lot by using push instead of concat, as concat will create a new array each iteration. Like this (shown just as an example of how you can wor...
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Get original URL referer with PHP?

I am using $_SERVER['HTTP_REFERER']; to get the referer Url. It works as expected until the user clicks another page and the referer changes to the last page. ...
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How to measure time taken between lines of code in python?

... If you want to measure CPU time, can use time.process_time() for Python 3.3 and above: import time start = time.process_time() # your code here print(time.process_time() - start) First call turns the timer on, and second call tells you how many seconds have elapsed. The...
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Converting string to Date and DateTime

... Sadly, this answer has too many upvotes for anyone to pay attention. It's all copy paste these days. – N.B. Apr 3 '18 at 20:54  |  show 4 mor...
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What's the meaning of interface{}?

...interface that has no methods. Since there is no implements keyword, all types implement at least zero methods, and satisfying an interface is done automatically, all types satisfy the empty interface. That means that if you write a function that takes an interface{} value as a parameter, yo...
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How to pass variable number of arguments to a PHP function

...distinct parameters. For instance, if you have this function : function test() { var_dump(func_num_args()); var_dump(func_get_args()); } You can pack your parameters into an array, like this : $params = array( 10, 'glop', 'test', ); And, then, call the function : call_user_func_ar...
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Optimize Font Awesome for only used classes

... Sass has no idea what classes you are actually using. This is something you will have to manually trim down yourself. Open up the provided .scss file and hack out anything you don't need. Editing the font file itself to eliminate unneeded glyphs requires a 3rd pa...
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Will Emacs make me a better programmer? [closed]

... who are merely good or competent will pick up an IDE and get to know it really well, and maybe do decently enough in it, but they'll restrict themselves to what the IDE provides for them. In other words, they adapt themselves to the IDE. The great programmers, on the other hand, will adapt their en...
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How to prevent a background process from being stopped after closing SSH client in Linux

... I would recommend using GNU Screen. It allows you to disconnect from the server while all of your processes continue to run. I don't know how I lived without it before I knew it existed. ...