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Django in / not in query

...e(); Tbl2.objects.filter(id__in=IDs') This did not work because IDs is actually a QuerySet object. When I deleted the rows it originated from, it no longer worked with other queries. The solution is Tbl2.objects.filter(id__in=list(IDs)) -- turn it into a list – Dakusan ...
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What exactly is nullptr?

...constant can be converted to std::nullptr_t. The opposite direction is not allowed. This allows overloading a function for both pointers and integers, and passing nullptr to select the pointer version. Passing NULL or 0 would confusingly select the int version. A cast of nullptr_t to an integral ty...
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Among $_REQUEST, $_GET and $_POST which one is the fastest?

...what my application should do (i.e. one or the other, but not both) : generally speaking : You should use $_GET when someone is requesting data from your application. And you should use $_POST when someone is pushing (inserting or updating ; or deleting) data to your application. Either way, the...
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How do I format a string using a dictionary in python-3.x?

...3). In many languages, it is known as splat operator. In JavaScript, it's called spread operator. In python, there is no particular name given to this operator. – abhisekp Apr 15 '17 at 12:01 ...
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How to determine whether code is running in DEBUG / RELEASE build?

...EBUG changed to another variable name such as DEBUG_MODE. then conditionally code for DEBUG in your source files #ifdef DEBUG // Something to log your sensitive data here #else // #endif share | ...
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How to get the CPU Usage in C#?

I want to get the overall total CPU usage for an application in C#. I've found many ways to dig into the properties of processes, but I only want the CPU usage of the processes, and the total CPU like you get in the TaskManager. ...
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Putting git hooks into repository

... I generally agree with Scytale, with a couple additional suggestions, enough that it's worth a separate answer. First, you should write a script which creates the appropriate symlinks, especially if these hooks are about enforcing ...
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How can I cast int to enum?

... (e.g. "2342342" -- assuming that's not a value of your enum), it will actually allow that without throwing an error! Your enum will have that value (2342342) even though it's not a valid choice in the enum itself. – JoeCool Jun 25 '13 at 15:14 ...
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Where does gcc look for C and C++ header files?

...stem header. If you run gcc in verbose mode on such a source, it will list all the system include locations as it looks for the bogus header. $ echo "#include <bogus.h>" > t.c; gcc -v t.c; rm t.c [..] #include "..." search starts here: #include <...> search starts here: /usr/local...
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Is Chrome's JavaScript console lazy about evaluating arrays?

...whether it's fixable. It does seem like bad behavior to me. It was especially troubling to me because, in Chrome at least, it occurs when the code resides in scripts that are executed immediately (before the page is loaded), even when the console is open, whenever the page is refreshed. Calling c...