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AttributeError: 'module' object has no attribute 'tests'

... I finally figured it out working on another problem. The problem was that my test couldn't find an import. It looks like you get the above error if your test fails to import. This makes sense because the test suite can't import ...
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How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?

...ruggling is creating a function which gets data_plot matrix, file name and order as parameter to create boxplots from the given data in the ordered figure (different orders = different figures) and save it under the given file_name. def plotFigure(data_plot,file_name,order): fig = plt.figure(or...
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What is the difference between synchronous and asynchronous programming (in node.js)

...he next statement is run. In this case the program is evaluated exactly in order of the statements. This is how asynchronous works in JavaScript. There are two parts in the JavaScript engine, one part that looks at the code and enqueues operations and another that processes the queue. The queue pro...
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Define: What is a HashSet?

...lculated from the hashcode of the object. Take a look here HashSet is an unordered collection containing unique elements. It has the standard collection operations Add, Remove, Contains, but since it uses a hash-based implementation, these operations are O(1). (As opposed to List for example, which ...
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Is the list of Python reserved words and builtins available in a library?

...break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield'] If you want to include built-in names as well (Python 3), then c...
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Access data in package subdirectory

...robust code that can access the subdirectory regardless of where it is installed on the user's system. 6 Answers ...
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git still shows files as modified after adding to .gitignore

... His files were already tracked by git because of an earlier commit, so in order to remove them, you have to create a new commit that removes them from the repository. – mcls Jul 19 '16 at 5:47 ...
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Create Generic method constraining T to an Enum

...write a HasAnyFlags<T>(this T it, T other) extension method that was orders of magnitude faster than Enum.HasFlag(Enum) and which type-checked its arguments. – supercat Apr 12 '13 at 16:27 ...
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How to force R to use a specified factor level as reference in a regression?

...level() command is a shorthand method to your question. What it does is reorder the factor so that whatever is the ref level is first. Therefore, reordering your factor levels will also have the same effect but gives you more control. Perhaps you wanted to have levels 3,4,0,1,2. In that case... ...
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LINQ Select Distinct with Anonymous Types

...on of objects. The exact type isn't important. From it I want to extract all the unique pairs of a pair of particular properties, thusly: ...