Thanks for the report, and for the manpage. /usr/bin/showtable actually conflicts with libdata-showtable-perl. I am not really happy to use the ".py" suffix for the rename, since usually utilities should not have language specific suffixes. Instead. I opened an upstream issue
https://github.com/astropy/astropy/issues/7233 Let's see where this goes. showtable.1 in casacore-utils however referred to a binary that was renamed to "showtableinfo" at some time; I just forgot to remove the manpage. This will be fixed with the next upload of casacore. Best Ole