No doubt, it's just that the line appeared in wackattack
's code, not the code he said he used as a reference for using the Bio modules. I do know who Lincoln Stein is, but I wondered if in following some other example a little too closely, the Bio modules had been installed in an unconventional place on wackattack
's system. That sort of thing occasionally happens.
For the original poster, the special global array @INC contains the paths which perl uses to find scripts and libraries for "do filename;", use and require commands. This is just general information, and isn't nearly as useful as perldoc -l (per chromatic). :)
perl -e 'print "$_\n" for @INC'