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How does Django's Meta class work?

...d controlled by a metaclass called ModelBase, you can see that code here: https://github.com/django/django/blob/master/django/db/models/base.py#L61 And one of the things that ModelBase does is to create the _meta attribute on every Django model which contains validation machinery, field details, s...
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Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM

...compression issue first. There are some relevant tests already available: http://www.theeggeadventure.com/wikimedia/index.php/Java_Data_Compression "I ran a test to compress one million consecutive integers using various forms of compression. The results are as follows:" None 4000027 De...
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Specify custom Date format for colClasses argument in read.table/read.csv

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How to check if a table contains an element in Lua?

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Does ARC support dispatch queues?

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How to remove EXIF data without recompressing the JPEG?

...tadata, camera info... everything!) from JPEG files, but I don't want to recompress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size. ...
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Hashing a string with Sha256

... in the Windows world for historical reasons but not used by anyone else). http://msdn.microsoft.com/en-us/library/system.text.encoding.unicode.aspx If you inspect your bytes array, you'll see that every second byte is 0x00 (because of the double-wide encoding). You should be using Encoding.UTF8.G...
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Django REST Framework: adding additional field to ModelSerializer

... class Meta: model = Foo fields = ('id', 'name', 'my_field') http://www.django-rest-framework.org/api-guide/fields/#serializermethodfield share | improve this answer | ...
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What is the difference between a static and a non-static initialization code block

... This is directly from http://www.programcreek.com/2011/10/java-class-instance-initializers/ 1. Execution Order Look at the following class, do you know which one gets executed first? public class Foo { //instance variable initializer Str...
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R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?

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