"help( pi )"
Gregory Ewing
greg.ewing at canterbury.ac.nz
Wed Nov 22 00:47:46 EST 2017
Cameron Simpson wrote:
> one could change implementations such that applying a docstring to an
> object _removed_ it from the magic-shared-singleton pool,
That's not sufficient, though. Consider:
BUFFER_SIZE = 256
BUFFER_SIZE.__doc__ = "Size of the buffer"
TWO_TO_THE_EIGHT = 256
TWO_TO_THE_EIGHT.__doc__ = "My favourite power of two"
Before the code is even run, the compiler may have merged the
two occurences of the integer literal 256 into one entry in
co_consts. By the time the docstrings are assigned, it's too
late to decide that they really needed to be different objects.
So, an int with a docstring needs to be explicitly created as
a separate object to begin with, one way or another.
--
Greg
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