Terry J. Reedy added the comment:
I do not think IEEEContext should not be made a class rather than a function
until it really *is* a subclass with altered or added behavior. This means at
least its own __str__ method and in this case, a __setattr__ that enforces the
invariants. Here that means refusing to modify the context, or at least not
prec and Emax (assuming that changes to any other context attributes (are there
any?) are harmless. Something like
def __setattr__(self, key, value):
if key in ('prec', 'Emax'):
raise AttributeError("cannot change {} of IEEEContext".format(key))
else:
super(IEEEContext, self).__setattr__(key, name)
----------
nosy: +terry.reedy
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Python tracker <[email protected]>
<http://bugs.python.org/issue8786>
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