Access to kerning pairs in the font

[Eli (Eli Castellanos)]

Hello, I’m trying to access the kerning object with the following code from the docu:

print(font.kerningForPair(font.selectedFontMaster.id, ‘A’, ‘V’))

I was expecting to get the kerning value for the pair, but I receive the following output:
9.22337203685e+18

I tried replacing the glyphs names by its kerning groups name
print(f.kerningForPair(f.selectedFontMaster.id, ‘@LAT_V_UC_1ST’, ‘@LAT_A_UC_2ND’))
but I obtain the same result.

I’m working directly on the Macro Panel
Any feedback would be appreciated. Thanks.

[mekkablue (Rainer Erich Scheichelbauer)]

@Eli

I was expecting to get the kerning value for the pair, but I receive the following output:
9.22337203685e+18

That number is NSNotFound, the system constant for ‘not available’. That means that pair has no kerning.