Calculating BCE dates

[sati-bodhi]

Is there a way to do calculations, especially for BCE dates?

from flexidate import parse
fd = parse('2 BC')
int(fd.year)+2

Converting to integer would yield year 0. Seems like adopting the astronomical numbering for years before 1 AD is indeed the way to go as far as calculations are involved.

What is flexidate's approach to such issues?

[rufuspollock]

This is a very good idea i.e.

from flexidate import parse
fd = parse('2 BC')
int(fd.year)+2

should yield: 1 and hence 2 BC should be -1.