# - - - f i x O l d A b b r def fixOldAbbr(abbr, txny): '''Does this abbr have a modern equivalent? [ (abbr is a bird code in standard form) and (txny is an xnomo3.Txny instance) -> if abbr is not defined in txny -> raise KeyError if txny has an exact standard equivalent -> return that as a code in standard form else -> return None ] '''
To find out if the code has a modern equivalent, we first
find the related
Taxon. If the
Taxon instance has an
attribute value other than
attribute is the equivalent standard code.
#-- 1 # [ if abbr is defined in txny -> # taxon := the related Taxon instance # else -> raise KeyError ] taxon = txny.lookupAbbr(abbr) #-- 2 # [ if taxon.abbr is None -> # return None # else -> # return taxon.abbr ] return taxon.abbr