There is probably some bug (but i don't know, if it isn't my fault), because if i give to command line interwiki.py -cat:category -force -start:f -subcat
it asks me for name of category and then starts from first page (e. g. [[1]]) instead of [[F]]. When i change position of parameters, sometimes it start from allpages. When i exclude -start:xxx, it asks me for name of category too.
JAn