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In a django model custom save() method, how should you identify a new object?

...exes on other fields). In that case, you could still have a new record in hand, but be unable to save it. share | improve this answer | follow | ...
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Removing all non-numeric characters from string in Python

... and that could be: from re import sub – James Koss May 6 '19 at 21:34 add a comment ...
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How can you list the matches of Vim's search?

... " put in your ~/.vimrc file " START search related configs and helps " " ignore case when searching set ignorecase " search as characters are entered, as you type in more characters, the search is refined set incsearch " highlight matches, in normal mode try...
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Change font size macvim?

I'm using macvim and I love it. I also happen to really like the default font. 7 Answers ...
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Android - Launcher Icon Size

...ge version of your icon when uploading your app onto the Google Play Store and this should be WEB 512 x 512. This is so large so that Google can rescale it to any size in order to advertise your app throughout the Google Play Store and not add pixelation to your logo. Basically, all of the other ic...
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Calculate size of Object in Java [duplicate]

... an object takes up for a project (I'm comparing sizes of data structures) and it seems like there is no method to do this in Java. Supposedly, C/C++ has sizeOf() method, but this is nonexistant in Java. I tried recording the free memory in the JVM with Runtime.getRuntime().freeMemory() before a...
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“using namespace” in c++ headers

... and how should we streamline the template functions--which are supposed to be in the headers? typedefs? – Chris Mar 11 '18 at 11:43 ...
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How do I commit only some files?

I have two projects. One is the "official" project and the second is a light modification (some files added). I created new branch and I put new files to them. But in during development some files common to both branches is changed. ...
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MPICH vs OpenMPI

Can someone elaborate the differences between the OpenMPI and MPICH implementations of MPI ? Which of the two is a better implementation ? ...
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How to construct a relative path in Java from two absolute paths (or URLs)?

...java.nio.file.Path#relativize(Path), it just works with parent double-dots and all. – Campa Feb 12 '16 at 9:40 Conside...