The module niverow.py writes numbers in Cornish. Options exist to include a noun or not, and to use a plural noun in cases of very large numbers. The function numberkw(num) allows an integer to be input to be written out in words, the function numberkw_noun(num, noun, fem, npl) allows input of a number along with a noun, a flag to indicate gender, and the plural of the noun. numberkw_float outputs numbers containing a decimal point, or negative numbers into text, and numberkw_float_noun does such numbers including the noun, which is written in the number + 'a' + plural noun format. The numbers after the decimap point are output individually one at a time.

I have recently (October 2020) ported this module's functionality to Javascript along with a Cornish language clock. I have also created a maths quiz in Cornish.

>>> import niverow
>>> niverow.numberkw(42)
'dew ha dew ugens'
>>> niverow.numberkw_noun(42,"ki", False, "keun")
'dew gi ha dew ugens'
>>> niverow.numberkw_noun(42,"kath", True, "kathes")
'diw gath ha dew ugens'
>>> niverow.numberkw_noun(9999,"kath", True, "kathes")
'naw mil, naw kans, nownsek ha peswar ugens a gathes'
>>> niverow.numberkw_float(-34.7)
'minus peswardhek warn ugens poynt seyth'
>>> niverow.numberkw_float_noun(9.57,"kilogramm", False, "kilogrammow")
'naw poynt pymp, seyth a gilogrammow'
    

In the second and third cases the plural noun does not need to be specified. If no plural noun is specified, if it is needed, it will default to the singular noun + 'ow'. The flag indicating gender is an optional argument, and will be assumed to be False (masculine) if not included.