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How to perform OR condition in django queryset?
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from django.db.models import Q
User.objects.filter(Q(income__gte=5000) | Q(income__isnull=True))
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Why are Standard iterator ranges [begin, end) instead of [begin, end]?
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The best argument easily is the one made by Dijkstra himself:
You want the size of the range to be a simple difference end − begin;
including the lower bound is more "natural" when sequences degenerate to empty ones, and also becaus...
Why am I seeing “TypeError: string indices must be integers”?
... a readable form. Using the advice on How can I convert JSON to CSV? I came up with this:
6 Answers
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Proper MIME media type for PDF files
When working with PDFs, I've run across the MIME types application/pdf and application/x-pdf among others.
3 Answers
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What is difference between XML Schema and DTD?
...estion, but I do not understand clearly what is an XML schema and DTD (document type definition), and why the XML schema is more powerful compared to DTD.
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CSS selector for a checked radio button's label
...ing combinator. It combines two sequences of simple selectors having the same parent and the second one must come IMMEDIATELY after the first.
As such:
input[type="radio"]:checked+label{ font-weight: bold; }
//a label that immediately follows an input of type radio that is checked
works very ...
Why does Hibernate require no argument constructor?
I got this hand-wavy answer but could somebody explain further? Thanks
9 Answers
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CSS3 :unchecked pseudo-class
...o-class, but is there an :unchecked pseudo-class, and do they have the same browser support?
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Edit the root commit in Git?
There's ways to change the message from later commits:
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C++11 std::threads vs posix threads
...ot work or has severe performance bottlenecks (as of 2012).
A good replacement is boost::thread - it is very similar to std::thread (actually it is from the same author) and works reliably, but, of course, it introduces another dependency from a third party library.
Edit: As of 2017, std::thread...