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How to toggle a value in Python

... use a conditional expression: >>> A = [1,2,3] >>> B = [4,5,6] >>> x = A >>> x = B if x == A else A >>> x [4, 5, 6] >>> x = B if x == A else A >>> x [1, 2, 3] >>> x = B if x == A else A >>> x [4, 5, 6] Solution using...
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Abort makefile if variable not set

... edited Feb 15 '19 at 11:04 answered Jun 1 '12 at 22:57 Eld...
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How are booleans formatted in Strings in Python?

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Most efficient method to groupby on an array of objects

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Determining Referer in PHP

...forgery – JD Isaacks Sep 13 '10 at 14:15 17 Ideally you should use a unique token per session per...
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Is it possible to run a single test in MiniTest?

... 44 I'm looking for similar functionality to rspec path/to/file.rb -l 25 Yup! Use Nick Quarant...
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How to shuffle a std::vector?

... user703016user703016 34.2k77 gold badges7878 silver badges104104 bronze badges ...
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Django: How do I add arbitrary html attributes to input fields on a form?

... answered May 25 '10 at 4:45 GalenGalen 28.8k88 gold badges6565 silver badges8787 bronze badges ...
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Managing constructors with many parameters in Java

...c class StudentBuilder { private String _name; private int _age = 14; // this has a default private String _motto = ""; // most students don't have one public StudentBuilder() { } public Student buildStudent() { return new Student(_name, _age, _motto); } ...
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define() vs. const

... | edited Apr 9 at 17:41 Bart Kuijper 344 bronze badges answered Jul 7 '10 at 9:59 ...