Congratulations! You're the first person to notice that since I wrote the Python book ten years ago.  Yes, I copied those entries from the Perl book and forgot to change the function names. Obviously "Perl binging" is not a typo.

I'll probably fix the old Python book  just as I finish writing the new Python book, covering the upcoming InterSystems IRIS Native API for Python. So please look forward to a new book and a brand new set of typos! With your help, perhaps we can catch them a bit sooner this time...