I went to cjan.org. If there is a reasonable body of reusable code there, it seems to be well hidden. It appears that CJAN is still a concept, not an actuality.

I'm not trying to dismiss Java or Python; I know how to spell each. Beyond that, I can't make an informed comparison. I doknow that Perl and CPAN work for me.

CPAN appears to remain one of the strongest features of Perl. It also appears that "competing" languages are still a ways off from offering a similar, comprehensive solution for code sharing.

yours,
Michael