There isn't a tuple is sight there - you are dealing with lists, and you > are modifying the very list you are iterating over. > > Try rewriting the code to create a new list from the old one (i.e. > iterate over catChains and have your code append to an initially empty > list called, for example, newCatChains, then finally throw the old list > away with > > catChains = newCatChains > > or some such). >
Thanks! > > PS (Mainly, I believe, for Carsten): While programming is difficult for > > me, I am writing (and have pretty much finished) this (almost) fully > > automated shopping cart. I don't intend to write any other serious > > programming project. However, a shopping cart is vital to my Web design > > business. I will hereafter outsource my programming. But, as any good > > supervisor knows, one has to know how to supervise! If I can't read > > code, then I'm at the mercy of my programmer(s). If I can't afford to > > hire some top gun who can supervise, then it's my responsibility. Plus, > > if my programmer(s) quit, I need to step in and take over. I'm an ok > > businessman, and absolutely gifted in sales. And in poetry ;) > > beno > > > Given that there are umpteen thousand hosting services who will let you > create a web site with shopping cart included I have to question whether > you are making the best use of your time here. Of course it's your time, > and your decision, so please don't think I am dictating to you. > It doesn't give one the control upon which I insist. No. That's not an option. > > While the learning you have performed in getting this system to work > (for some rather questionable value of "work", I can't help feeling, but > we'll overlook the horrors induced by your lack of programming > experience) is a testament to your persistence (and this list's > tolerance) I can't help feeling that it leaves you no better qualified > to supervise programmers. > Ah, but you aren't a businessman, are you? You wouldn't know... beno
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