cannot convert float nan to integer python

The description of OverflowError is that is is 'raised when the result of an arithmetic operation is too large to be represented', so it doesn't actually need to overflow. The from_decimal method should be changed as well. So either of ValueError or OverflowError works for me there. I think that should have been ValueError, too. I'm not a big fan of the OverflowError for converting infinities to an integer: nothing's actually overflowed here. Should the exceptions be changed to ValueError and OverflowError?Īuthor: Mark Dickinson (mark.dickinson) *Ĭertainly TypeError seems inappropriate here, and using ValueError for conversions from NaN sounds good to me. TypeError: Cannot convert -inf to Fraction. TypeError: Cannot convert inf to Fraction. OverflowError: cannot convert float infinity to integer TypeError: Cannot convert nan to Fraction. Raise TypeError('Cannot convert %r to %s.' % (f, cls._name_)) ValueError: cannot convert float NaN to integerįile '/opt/local/lib/python3.2/ fractions.py', line 114, in _new_įile '/opt/local/lib/python3.2/ fractions.py', line 186, in from_float When attempting to convert a float('nan'), float('inf'), or float('-inf'), fractions.Fraction() raises different exceptions than int()

Exceptions raised by Fraction() different from those raised by int()Īsvetlov, casevh, lotti, kachayev, loewis, mark.dickinson, rhettinger, skrahĬreated on 06:30 by casevh, last changed 22:20 by kachayev.

Cannot convert float nan to integer python