A. Lloyd Flanagan wrote:
On Friday, March 2, 2012 6:49:39 PM UTC-5, Ethan Furman wrote:
Jeff Beardsley wrote:
HISTORY:
...
What you should be doing is:
import decimal
from decimal import Decimal
reload(decimal)
Decimal = decimal.Decimal # (rebind 'Decimal' to the reloaded code)
~Ethan~
Agree that's how the import should be done. On the other hand, removing
gratuitous use of isinstance() is generally a Good Thing.
Gratuitous use? How is it gratuitous for an class to check that one of
its arguments is its own type?
class Frizzy(object):
def __add__(self, other):
if not isinstance(other, Frizzy):
return NotImplemented
do_stuff_with(self, other)
This is exactly what isinstance() is for, and this is how it is being
used in Decimal.__init__().
~Ethan~
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