This book describes Python, an open-source general-purpose interpreted programming language available for the most popular operating systems. The current versions are 3.x while versions 2.x are no longer supported, since 2020. This book describes primarily the versions 3.x, but does at times reference versions 2.x.
There are a few implementations for Python 3 (and older): the standard implementation written in C, and PyPy, a JIT-compiled version written in RPython - a subset of Python. For Python 2 only there are Jython written in Java and IronPython written in C# for the .NET environment.
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(Strings, Lists, Tuples, Dictionaries, Sets)
-- redundant to "Operators"
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