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Good ways to sort a queryset? - Django
...or
auths = Author.objects.order_by('-score')[:30]
ordered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#order-by
order_by(*fields)
By default, resul...
How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
In an given Android activity, I would like to start a new activity for the user at some point. Once they leave the first activity and arrive at the second, the first activity is stale and I want to remove it completely so it can not be accessed again from the back button.
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Encapsulation vs Abstraction?
...ed by their position, concrete examples of a List are an ArrayList or a LinkedList. Code that interacts with a List abstracts over the detail of which kind of a list it is using.
Abstraction is often not possible without hiding underlying state by encapsulation - if a class exposes its internal sta...
Is there an XSLT name-of element?
...t;xsl:value-of select ="name(.)"/>
OP-Edit: This will also do the trick:
<xsl:value-of select ="local-name()"/>
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What's the difference between a Python module and a Python package?
What's the difference between a Python module and a Python package?
5 Answers
5
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Delete newline in Vim
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If you want to keep the cursor position use :join and :join! that will join lines keeping cursor position and do not keep any space at the joining point. you can also map it like: nnoremap <Leader>j :joing<cr> and nnoremap <...
How do I move a single folder from one Subversion repository to another repository?
...tory named "project". I've come to the conclusion that it should really be kept under a separate Subversion repository named "project_docs".
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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 because the alternative (excluding the l...
Why is an int in OCaml only 31 bits?
Haven't seen this "feature" anywhere else. I know that the 32nd bit is used for garbage collection. But why is it that way only for ints and not for the other basic types?
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Windows batch: formatted date into variable
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You can get the current date in a locale-agnostic way using
for /f "skip=1" %%x in ('wmic os get localdatetime') do if not defined MyDate set MyDate=%%x
Then you can extract the individual parts using substrings:
set today=%MyDate:~0,4%-%MyDate:~4,2%-%MyDate:~6,2%
Another way, where you g...