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What does if __name__ == “__main__”: do?

...e is a library, but you want to have a script mode where it runs some unit tests or a demo. Your module is only used as a main program, but it has some unit tests, and the testing framework works by importing .py files like your script and running special test functions. You don't want it to try ru...
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PDO's query vs execute

...metimes there are rare exceptions to best practices, and you might want to test your environment both ways to see what will work best. In one case, I found that query worked faster for my purposes because I was bulk transferring trusted data from an Ubuntu Linux box running PHP7 with the poorly sup...
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What is the difference between a map and a dictionary?

...lements that can support the insertion and deletion of elements as well as test for membership For example, we have a set of elements { A, B, C, D... } that we've been able to insert and could start deleting, and we're able to query "is C present?". The Computing Science notion of map though is b...
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How do you test functions and closures for equality?

..._func_impl.c As you see it is capable of checking identity only (the 2nd test yields false). But that should be good enough. share | improve this answer | follow ...
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Fastest way to copy file in node.js

...m (copying/reading/writing etc). I'd like to know which methods are the fastest, and I'd be happy to get an advice. Thanks. ...
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Avoiding if statement inside a for loop?

...rry about in terms of performance In this case I advocate for keeping the test inside the loop for clarity. share | improve this answer | follow | ...
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What is the fastest substring search algorithm?

... Build up a test library of likely needles and haystacks. Profile the tests on several search algorithms, including brute force. Pick the one that performs best with your data. Boyer-Moore uses a bad character table with a good suffix...
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How to write to an existing excel file without overwriting data (using pandas)?

...ace sheet_name with sheetname! Usage examples: append_df_to_excel('d:/temp/test.xlsx', df) append_df_to_excel('d:/temp/test.xlsx', df, header=None, index=False) append_df_to_excel('d:/temp/test.xlsx', df, sheet_name='Sheet2', index=False) append_df_to_excel('d:/temp/test.xlsx', df, sheet_name='Sh...
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What are some examples of commonly used practices for naming git branches? [closed]

...nge. I do not know what your cycles are, but let's assume they are 'new', 'testing' and 'verified'. You can name your branches with abbreviated versions of these tags, always spelled the same way, to both group them and to remind you which stage you're in. new/frabnotz new/foo new/bar test/foo tes...
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Get second child using jQuery

...jsperf.com/second-child-selector The $(t).first().next() method is the fastest here, by far. But, on the other hand, if you take the <tr> node and find the <td> children and and run the same test, the results won't be the same. Hope it helps. :) ...