On 02.03.17 12:04, M.-A. Lemburg wrote:
This is not new syntax, nor is it a keyword. It's only a new singleton and it is well usable outside of function declarations as well, e.g. for class attributes which are not yet initialized (and which can accept None as value).
If it is not a keyword, it could be used in expressions, e.g. assigned to a variable or passed to a function. It could be monkey-patched or hidden by accident (as True and False in Python 2).
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