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How to find all the subclasses of a class given its name?

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Standard way to embed version into python package?

...ually, __version__ is a string, but sometimes it's also a float or tuple. Edit: as mentioned by S.Lott (Thank you!), PEP 8 says it explicitly: Module Level Dunder Names Module level "dunders" (i.e. names with two leading and two trailing underscores) such as __all__, __author__, __versio...
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String concatenation in Ruby

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Can modules have properties the same way that objects can?

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Difference between global and device functions

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What does the “__block” keyword mean?

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How to use a dot “.” to access members of dictionary?

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Elegant ways to support equivalence (“equality”) in Python classes

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What is the fastest way to get the value of π?

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Is there a simple, elegant way to define singletons? [duplicate]

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