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How to document class attributes in Python? [closed]

...lightweight class whose attributes are intended to be publicly accessible, and only sometimes overridden in specific instantiations. There's no provision in the Python language for creating docstrings for class attributes, or any sort of attributes, for that matter. What is the expected and suppor...
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When to throw an exception?

...e 1: say I have a function which is supposed to examine an arbitrary class and return true if that class inherits from List<>. This function asks the question, "Is this object a descendant of List?" This function should never throw an exception, because there are no gray areas in its operation...
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Convert data.frame column to a vector?

...a frame is a list. When you subset a data frame using the name of a column and [, what you're getting is a sublist (or a sub data frame). If you want the actual atomic column, you could use [[, or somewhat confusingly (to me) you could do aframe[,2] which returns a vector, not a sublist. So try run...
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What is the effect of extern “C” in C++?

...then link to using the C name. Since C++ has overloading of function names and C does not, the C++ compiler cannot just use the function name as a unique id to link to, so it mangles the name by adding information about the arguments. A C compiler does not need to mangle the name since you can not ...
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Using logging in multiple modules

...logging logger = logging.getLogger(__name__) near the top of the module, and then in other code in the module do e.g. logger.debug('My message with %s', 'variable data') If you need to subdivide logging activity inside a module, use e.g. loggerA = logging.getLogger(__name__ + '.A') loggerB = l...
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How to test code dependent on environment variables using JUnit?

I have a piece of Java code which uses an environment variable and the behaviour of the code depends on the value of this variable. I would like to test this code with different values of the environment variable. How can I do this in JUnit? ...
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Determine whether JSON is a JSONObject or JSONArray

...u have an array tokenizer is able to return more types: http://developer.android.com/reference/org/json/JSONTokener.html#nextValue() share | improve this answer | follow ...
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What's the difference between Spring Data's MongoTemplate and MongoRepository?

...write an application with which I can do complex queries using spring-data and mongodb. I have been starting by using the MongoRepository but struggled with complex queries to find examples or to actually understand the Syntax. ...
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What is the difference between Reader and InputStream?

What is the difference between Reader and InputStream? And when to use what? If I can use Reader for reading characters why I will use inputstream, I guess to read objects? ...
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Understanding Spring @Autowired usage

I am reading the spring 3.0.x reference documentation to understand Spring Autowired annotation: 3 Answers ...