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+--- Thread: referencing an attribute (/thread-40995.html)
referencing an attribute - Skaperen - Oct-26-2023
is there a way to make a variable be a reference to an attribute? i would like to set up a named reference to
decimal.getcontext().prec so i have a simpler way to set the decimal precision. this aappears to be an attribute.
RE: referencing an attribute - snippsat - Oct-27-2023
Cannot directly make a variable a reference to an attribute,
but can create a wrapper function that allows to set the value of the attribute more easily.
import decimal
def pre(prec=None):
if prec is not None:
decimal.getcontext().prec = prec
return decimal.getcontext().prec>>> pre()
28
>>> n = decimal.Decimal(2).sqrt()
>>> n
Decimal('1.414213562373095048801688724')
>>> pre(5)
5
>>> n = decimal.Decimal(2).sqrt()
>>> n
Decimal('1.4142')
RE: referencing an attribute - Skaperen - Oct-28-2023
that was what i was thinking i would need to do.