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Continuously read from STDOUT of external process in Ruby

I want to run blender from the command line through a ruby script, which will then process the output given by blender line by line to update a progress bar in a GUI. It's not really important that blender is the external process whose stdout I need to read. ...
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Unique fields that allow nulls in Django

...l Foo which has field bar. The bar field should be unique, but allow nulls in it, meaning I want to allow more than one record if bar field is null , but if it is not null the values must be unique. ...
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How to find keys of a hash?

I know in javascript Objects double as hashes but i have been unable to find a built in function to get the keys 9 Answers...
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JUnit test with dynamic number of tests

In our project I have several JUnit tests that e.g. take every file from a directory and run a test on it. If I implement a testEveryFileInDirectory method in the TestCase this shows up as only one test that may fail or succeed. But I am interested in the results on each individual file. How c...
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What does the 'static' keyword do in a class?

To be specific, I was trying this code: 21 Answers 21 ...
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Call by name vs call by value in Scala, clarification needed

As I understand it, in Scala, a function may be called either 16 Answers 16 ...
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What to do about a 11000 lines C++ source file?

So we have this huge (is 11000 lines huge?) mainmodule.cpp source file in our project and every time I have to touch it I cringe. ...
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Can you help me understand this? “Common REST Mistakes: Sessions are irrelevant”

Disclaimer: I'm new to the REST school of thought, and I'm trying to wrap my mind around it. 6 Answers ...
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Convert string date to timestamp in Python

How to convert a string in the format "%d/%m/%Y" to timestamp? 14 Answers 14 ...
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Will strlen be calculated multiple times if used in a loop condition?

I'm not sure if the following code can cause redundant calculations, or is it compiler-specific? 18 Answers ...