https://bugzilla.wikimedia.org/show_bug.cgi?id=61120
--- Comment #1 from Sorawee Porncharoenwase nullzero.free@gmail.com --- Oh! I forgot to mention that the above code fails because iterlanglinks() will call pywikibot.Link.langlinkUnsafe.
There are two places calling pywikibot.Link.langlinkUnsafe: in iterlanglinks() and in update_page() from api.py. I don't which way is better between putting try-except block inside pywikibot.Link.langlinkUnsafe directly, and putting try-except block in caller functions over pywikibot.Link.langlinkUnsafe.