> In one case, I was iterating over the contents of what was supposed to be a list, but in some rare circumstances could instead be a string. The creator of a

> In one case, I was iterating over the contents of what was supposed to be a list, but in some rare circumstances could instead be a string. The creator of a well-known alternative to Python has a single-letter email address, and regularly receives email generated by Python scripts with this exact bug (which means instead of sending an email to "user", sends an email to "u", "s", "e", and "r"). So I’ve heard.