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Django dump data for a single model?

...nd greater, the Django dumpdata management command allows you to dump data from individual tables: ./manage.py dumpdata myapp1 myapp2.my_model You can also separate multiple apps and models on the command line. Here's the canonical definition: django-admin dumpdata [app_label[.ModelName] [app_la...
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How do I get a value of datetime.today() in Python that is “timezone aware”?

I am trying to subtract one date value from the value of datetime.today() to calculate how long ago something was. But it complains: ...
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What is an invariant?

...ion. That is, if your loop was supposed to process a collection of objects from one stack to another, you could say that |stack1|+|stack2|=c, at the top or bottom of the loop. If the invariant check failed, it would indicate something went wrong. In this example, it could mean that you forgot to pu...
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Python - 'ascii' codec can't decode byte

... So to state it clearly from above you can "你好".decode('utf-8').encode('utf-8') – deinonychusaur Jul 25 '13 at 8:18 5 ...
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Install Node.js on Ubuntu

... software-properties-common As of Node.js v0.10.0, the nodejs package from Chris Lea's repo includes both npm and nodejs-dev. Don't give sudo apt-get install nodejs npm just sudo apt-get install nodejs share ...
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How do I vertically align text in a div?

...browsers (Internet Explorer 6/7) into styles with using # to hide styles from newer browsers: div { border:1px solid green;} <div style="display: table; height: 400px; #position: relative; overflow: hidden;"> <div style= "#position: absolute; #top: 50%;display: table-cell; v...
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How to find if a native DLL file is compiled as x64 or x86?

I want to determine if a native assembly is complied as x64 or x86 from a managed code application ( C# ). 11 Answers ...
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Android phone orientation overview including compass

...stem changes when you rotate the device. Thus, when the device is rotated from its default view mode, the sensor coordinate system is no longer the same as the screen coordinate system. The rotation matrix in this case is used to transform A to C (B always remains fixed). Here's a code snippet to...
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UIActionSheet cancel button strange behaviour

... on the "Cancel" button. The target of the button appears to have moved up from where it should be. I can only activate it by clicking somewhere in the middle of the "Cancel" and "Ok" buttons. ...
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What is the result of % in Python?

... The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type. A zero right argument raises the ZeroDivisionError exception. The arguments may be floating point numbers, e.g...