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How to override the copy/deepcopy operations for a Python object?

...ully, but this is the first time I've actually gone about overloading the __copy__ and __deepcopy__ methods. I've already Googled around and looked through the built-in Python modules to look for instances of the __copy__ and __deepcopy__ functions (e.g. sets.py , decimal.py , and fracti...
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Batch file include external file for variables

...eem to be unaware that there are significant differences and just blindly call everything with grey text on black background DOS. Nevertheless, the first variant should work in DOS as well. Executable configuration The easiest way to do this is to just put the variables in a batch file themselves, e...
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CORS - How do 'preflight' an httprequest?

...t involves configuring the server responses to include the "Access-Control-Allow-Origin" header and 'preflight' requests with and OPTIONS request. I got the idea from this post : Getting CORS working ...
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Mark parameters as NOT nullable in C#/.NET?

... function parameter that prevents null from being passed in C#/.NET? Ideally this would also check at compile time to make sure the literal null isn't being used anywhere for it and at run-time throw ArgumentNullException . ...
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Removing all unused references from a project in Visual Studio projects

... wondered if it possible within various Visual Studio versions to automatically remove all references from a project that were never been used? ...
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How do you default a new class to public when creating it in Visual Studio?

...1033. Visual Studio 2010 (10.0) and below: There is a zip file in there called Class.zip. Unpack this, edit the file to put in your public keyword then re-pack it (make sure you backup the original). After this, make sure VS rebuilds it's cache (which is just the zipfiles unzipped into directorie...
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How to write string literals in python without having to escape them?

...roduction.html#strings and here: http://docs.python.org/reference/lexical_analysis.html#literals The simplest example would be using the 'r' prefix: ss = r'Hello\nWorld' print(ss) Hello\nWorld share | ...
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Number of days between two dates in Joda-Time

...8, Java SE 9, Java SE 10, and later Built-in. Part of the standard Java API with a bundled implementation. Java 9 adds some minor features and fixes. Java SE 6 and Java SE 7 Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport. Android Later versions of ...
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How to test a confirm dialog with Cucumber?

...rrent releases of Capybara. Most Capybara drivers today support the modal API. To accept a confirm modal you would do accept_confirm do # dismiss_confirm if not accepting click_link 'delete' # whatever action triggers the modal to appear end This can be used in Cucumber with something like ...
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How to force file download with PHP

... exit() should be called at the end to avoid any potential problems (speaking from experience :-) – ykay says Reinstate Monica Aug 20 '19 at 10:51 ...