Answer 1

"
... Simply put, a module in python is a .py file that defines one or more function/classes which you intend to reuse in different codes of your program.
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Unlike C or C++, the term library does not have any specific contextual meaning in p\Python. When used in Python, a library is used loosely to describe a collection of the core modules.

The term ‘standard library‘ in Python language refers to the collection of exact syntax, token and semantics of the Python language which comes bundled with the core Python distribution.
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Explained in greater detail:

http://knowpapa.com/modpaclib-py/