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How do I run all Python unit tests in a directory?

I have a directory that contains my Python unit tests. Each unit test module is of the form test_*.py . I am attempting to make a file called all_test.py that will, you guessed it, run all files in the aforementioned test form and return the result. I have tried two methods so far; both have fail...
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Static methods in Python?

Is it possible to have static methods in Python which I could call without initializing a class, like: 10 Answers ...
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Usage of __slots__?

What is the purpose of __slots__ in Python — especially with respect to when I would want to use it, and when not? 11 A...
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How to delete items from a dictionary while iterating over it?

Is it legitimate to delete items from a dictionary in Python while iterating over it? 10 Answers ...
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Which Python memory profiler is recommended? [closed]

I want to know the memory usage of my Python application and specifically want to know what code blocks/portions or objects are consuming most memory. Google search shows a commercial one is Python Memory Validator (Windows only). ...
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Convert a Unicode string to a string in Python (containing extra symbols)

...vert a Unicode string (containing extra characters like £ $, etc.) into a Python string? 9 Answers ...
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Cost of len() function

What is the cost of len() function for Python built-ins? (list/tuple/string/dictionary) 5 Answers ...
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Does Python have “private” variables in classes?

I'm coming from the Java world and reading Bruce Eckels' Python 3 Patterns, Recipes and Idioms . 12 Answers ...
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Elegant ways to support equivalence (“equality”) in Python classes

...important to allow equivalence by means of the == and != operators. In Python, this is made possible by implementing the __eq__ and __ne__ special methods, respectively. The easiest way I've found to do this is the following method: ...
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Converting int to bytes in Python 3

I was trying to build this bytes object in Python 3: 13 Answers 13 ...