On 22Nov2017 18:47, Greg Ewing <greg.ew...@canterbury.ac.nz> wrote:
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.
Ah.
Even without that it felt a little racy to me anyway.
Cheers,
Cameron Simpson <c...@cskk.id.au>
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